The New York Times [nytimes.com] reports:
[...] only industry executives are currently set to testify. And most of them are lawyers and policy experts, not engineers versed in the mechanics of data-mining algorithms.
[...]
Frederick Hill, a spokesman for the Senate Commerce Committee, said the group planned future hearings that would include other voices, such as consumer groups. [...]
[...]
[...] consumer advocates hope senators will press AT&T, Amazon and other companies this week to provide more details on their consumer-profiling practices.