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W. J. Hennigan reports at the LA Times that as diplomats rush to reach an agreement to curb Iran's nuclear program, the US military is stockpiling conventional bombs so powerful that strategists say they could cripple Tehran's most heavily fortified nuclear complexes. The bunker-busting bombs are America's most destructive munitions short of atomic weapons and at 15 tons, each is 5 tons heavier than any other bomb in the US arsenal. “The Pentagon continues to be focused on being able to provide military options for Iran if needed,” says a senior US official. “We have not taken our eyes off the ball.”

Obama has made it clear that he has no desire to order an attack, warning that US airstrikes on Iran's air defense network and nuclear facilities would spark a destabilizing new war in the Middle East, and would only delay Iran by several years should it choose to build a bomb. "A military solution will not fix it," says Obama. An attack "would temporarily slow down an Iranian nuclear program, but it will not eliminate it." That being said the latest iteration of the MOP — massive ordnance penetrator — was successfully tested on a deeply buried target in January at the White Sands Missile Range in New Mexico. The test followed upgrades to the bomb's guidance system and electronics to stop jammers from sending it off course. B-2 stealth bombers would be required to drop the MOP, which is designed to burrow 200 feet underground before it detonates. Multiple MOPs probably would be aimed at the same target to bore deeper and achieve maximum destruction. A US attack could spark a broader war in the world's most volatile region. Iran has hundreds of medium-range missiles capable of hitting Israel, Jordan and other American allies, according to defense intelligence estimates. "It would create huge problems," says Michael E. O'Hanlon. "That said, it's hard to rule out if talks fail."

The Washington Post reports that lying may soon become a lost art as our digital, data-hoarding culture means that more and more evidence is piling up to undermine our lies. "The research shows the way lies are really uncovered is by comparing what someone is saying to the evidence," says Tim Levine,"and with all these news analytics that can be done, it's going to enable lie detection in a way that was previously impossible." For example in Pennsylvania, police are prosecuting a woman who claimed she was sexually assaulted earlier this year after data from her Fitbit didn't match up with her story, Just like you can Google a fact to end an argument, instant messaging programs that archive digital conversations make it easy to look back and see exactly who said what -- and if it matches up with what a person is saying now. "Lying online can be very dangerous," says Jeff Hancock. "Not only are you leaving a record for yourself on your machine, but you're leaving a record on the person that you were lying to."

Even more alarming for liars is the incorporation of lie detector technology into the facial recognition technology. Researchers claim video-analysis software can analyze eye movement successfully to identify whether or not a subject is fibbing 82.5 percent of the time. The new technology heightens surveillance capabilities—from monitoring actions to assessing emotions—in ways that make an individual ever more vulnerable to government authorities, marketers, employers, and to any and every person with whom we interact. "We must understand that—at the individual level and with regard to interpersonal relations—too much truth and transparency can be harmful," says Norberto Andrade. "The permanent confrontation with a verifiable truth will turn us into overly cautious, calculating, and suspicious people."

Mark Scott writes in the NYT that Google will start testing a carpooling service where drivers will be able to use a smartphone app called RideWith to pick up passengers during rush hours, allowing them to split the cost of their rides to work. Unlike similar services offered by the likes of Uber, Google’s carpooling service will allow drivers to recoup only the cost of gas and wear and tear to their vehicles. Drivers will not be able to use the app to offer traditional taxi services. “Carpooling can be a hassle and difficult to manage,” said Waze, the Israeli social mapping start-up that the company bought in 2013 for $1 billion. “Waze has developed RideWith to serve Israeli commuters at their greatest time of need: rush hour. We hope to learn a lot from this pilot and will let you know how it goes.”

The service, which is currently available only in Israel, is part of Google’s increasing moves into the territory of Uber which has started its own carpooling service in the United States, which allows users to divide the cost of a ride when traveling in the same direction. This is the latest sign that Google and Uber are more likely to be ferocious competitors than allies. Google is preparing to offer its own ride-hailing service, most likely in conjunction with its long-in-development driverless car project while Uber is also teaming up with Carnegie Mellon University for a research facility in Pittsburgh, Pa., to develop its own autonomous vehicle technology.

Ever notice at your high school reunions how some classmates look ten years older than everybody else - and some look ten years younger. Now BBC reports that a study of people born within a year of each other has uncovered a huge gulf in the speed at which human bodies bodies age. The report tracked traits such as weight, kidney function and gum health and found that some of the 38-year-olds in the study were aging so badly that their "biological age" was on the cusp of retirement. "They look rough, they look lacking in vitality," says Prof Terrie Moffitt. The study says some people had almost stopped aging during the period of the study, while others were gaining nearly three years of biological age for every twelve months that passed. "Any area of life where we currently use chronological age is faulty, if we knew more about biological age we could be more fair and egalitarian," says Moffitt.

The researchers studied aging in 954 young humans, the Dunedin Study birth cohort, tracking multiple biomarkers across three time points spanning their third and fourth decades of life. They developed and validated two methods by which aging can be measured in young adults, one cross-sectional and one longitudinal. According to Moffit the science of healthspan extension may be focused on the wrong end of the lifespan; rather than only studying old humans, geroscience should also study the young. "Eventually if we really want to slow the process of ageing to prevent the onset of disease we're going to have to intervene with young people."

Edward-Isaac Dovere reports in Politico that the fastest-growing chapter of the Obama alumni association is in Silicon Valley. For the people who helped get Obama elected and and worked for him once he did there’s something about San Francisco and its environs that just feels right: the emphasis on youth and trying things that might fail, chasing that feeling of working for the underdog, and even using that word “disrupting” to describe what they do. “A lot of people who moved out here were present at the creation of the Obama ’08 campaign,” says Tommy Vietor. “There’s a piece of them that wants to replicate that.” Vietor left the White House two years ago, and he and his business partner, former Obama speechwriter Jon Favreau, founded a communications strategy firm with a focus on speechwriting for tech and other start-ups. “If you’re writing for a CEO out here, they’re more likely to be your peer than your grandfather,” says Vietor. “They’re young, they’re cool, they get it.”

Other former Obama staffers who have come to Silicon Valley include former campaign manager and White House adviser David Plouffe at Uber, Kyle O’Connor at Nest, Semonti Stephens at Twitter; Mike Masserman, at Lyft; Brandon Lepow at Facebook; Nicole Isaac, at LinkedIn; Liz Jarvis-Shean at Civis; Jim Green and Vivek Kundra at Salesforce, Alex McPhillips at Google; Gillian Bergeron, at NextDoor; Natalie Foster at the Institute for the Future; Catherine Bracy at Code for America; Hallie Montoya Tansey at Target Labs. Nick Papas, John Baldo, Courtney O’Donnell and Clark Stevens at AirBnB, and Jessica Santillo at Uber.

There are so many former Obama staffers in the Bay Area that a recent visit by former White House senior adviser David Axelrod served as a reunion of sorts, with more than a dozen campaign and White House veterans gathering over lunch to discuss life after the administration. Obama himself rarely misses an opportunity to come to San Francisco. He says he loves the energy there, loves the people and according to Dovere, the city’s ultra-liberal leanings mean he was greeted as a rock star even during the dark days before last year’s midterms. Obama's even become friendly with Elon Musk. “There should be a welcome booth at the SFO airport,” says Jon Carson, the former Organizing for Action executive director now at SolarCity.

The Washington Post reports that this is becoming another Summer of the Shark as there have been seven recent shark attacks in North Carolina and scientists are looking for what might be luring the usually shy sharks so close to shore and among the swimmers they usually avoid. North Carolina’s seven shark attacks is an unusual number for a state that recorded 25 attacks between 2005 and 2014. Even with the recent incidents, researchers emphasize that sharks are a very low-level threat to humans, compared with other forms of wildlife. Bees, for example, are much more dangerous. And swimming itself is hazardous even without sharks around.

George Burgess, director of the International Shark Attack File at the University of Florida’s Florida Museum of Natural History, speculates that several environmental factors could be pushing sharks to congregate in the Outer Banks. It is a warm year, and the water has a higher level of salinity because of a low-level drought in the area. Also, a common species of forage fish — menhaden — has been abundant this year and might have attracted more sharks to the area. Burgess also says some fishermen put bait in the water near piers, which could lure the predators closer to shore; two of the encounters took place within 100 yards of a pier. “That’s a formula for shark attacks,” Burgess says of these conditions, taken together. “Now, does that explain seven attacks in three weeks? No, it doesn’t.”

Burgess says not to swim near seals, where fishing is occurring, or near other things that sharks find tasty. Sharks can sniff out blood, so don't swim with open wounds. And leave your bling on the beach -- sharks are curious about bright, shiny objects, so don't lure them with baubles. Also avoid swimming at dawn and dusk, when sharks tend to feed. Stick together in groups and stay out of the water during and after storms. Aside from dangerous surf and rip currents, decreased water visibility can confuse sharks, prompting mistaken-identity bites. "Always remember," concludes Burgess. "They have bigger teeth, but we have bigger brains."

Michael Bastach reports that the White House wants doctors and other medical professionals to teach Americans about global warming and how climate change could make their health worse. At a summit the White House called to bring together health and medical professionals, academics, and other stakeholders to empower people and communities with the information and tools they need to protect public health in the face of climate change, Obama told medical professionals in a taped address that he needs "doctors, nurses and citizens, like all of you to get to work to raise awareness and organize folks for real change.” The central message: doctors should warn their patients that global warming could make their health worse. “We need to engage medical students themselves,” said Vice Admiral Vivek Murthy, the U.S. Surgeon General, “to demand the curriculum change” to prepare them for a warmer future."

Critics of the White House summit argued the event highlighted the collusion between the Obama administration and activist groups and called out the White house for teaming up with the American Lung Association (ALA) to promote the link between global warming and public health. “The involvement of the ALA in promoting and organizing today’s White House summit on climate change and health is yet another sign that the Obama administration has been co-opted by outside pressure groups, and has politicized the EPA’s decision-making process,” wrote Karen Kerrigan, president of the Small Business & Entrepreneurship Council."

USA Today reports that the FBI is investigating at least 11 physical attacks on high-capacity Internet cables in California's San Francisco Bay Area dating back to at least July 6, 2014, including one early this week. "When it affects multiple companies and cities, it does become disturbing," says Special Agent Greg Wuthrich. "We definitely need the public's assistance." The pattern of attacks raises serious questions about the glaring vulnerability of critical Internet infrastructure, says JJ Thompson. "When it's situations that are scattered all in one geography, that raises the possibility that they are testing out capabilities, response times and impact," says Thompson. "That is a security person's nightmare."

Mark Peterson, a spokesman for Internet provider Wave Broadband, says an unspecified number of Sacramento-area customers were knocked offline by the latest attack. Peterson characterized the Tuesday attack as "coordinated" and said the company was working with Level 3 and Zayo to restore service. It’s possible the vandals were dressed as telecommunications workers to avoid arousing suspicion, say FBI officials. Backup systems help cushion consumers from the worst of the attacks, meaning people may notice slower email or videos not playing, but may not have service completely disrupted. But repairs are costly and penalties are not stiff enough to deter would-be vandals. "There are flags and signs indicating to somebody who wants to do damage: This is where it is folks," says Richard Doherty. "It's a terrible social crime that affects thousands and millions of people."

The Sacramento Bee reports that the labor contract between California state government and the 2,800 employees represented by California Association of Professional Scientists expired this week, spotlighting yet again the long-running feud over whether the tiny union’s members should earn as much as their peers in federal and local governments and private industry. “It’s a challenge to keep people motivated,” says Rita Hypnarowski. “We talk about retaining the best and the brightest, but I can see that’s not going to happen.” A recent survey by the Brown administration found that the total compensation for half of state-employed chemists is less than $8,985 per month. That’s 33 percent less than the median total compensation for federal chemists, nearly 13 percent less than the midpoint for local-government chemists and almost 6 percent below the private sector. Members of the union perform a wide variety of tasks, everything from fighting food-borne illnesses to mopping up the Refugio State Beach oil spill. For example Cassandra McQuaid left a job last year at the Department of Public Health’s state-of-the-art Richmond laboratories where she tracked foodborne illnesses. It’s the kind of vital, behind-the-scenes work that goes unnoticed until an E. coli outbreak makes headlines and local health officials need a crack team of scientists to unravel how it happened. “It really came down to money,” says McQuaid. “I just couldn’t live in the Bay Area on a state salary.”