But the different versions were evidence that congressional inquires and public concern expressed over TIA were actually being heard, Rosenzweig suggested. While he called for congressional oversight of the programs, he defended the research into data analysis as an option for fighting terrorism.
"I don't see in these (DARPA) charts a nefarious mutation of policy; I see the natural product of the development of an idea," Rosenzweig told the subcommittee. "That ultimately gets defined as it's subject to public scrutiny. DARPA's mission is to have the wild hair for the idea, it's the other people in the executive branch's mission to say, 'whoa, make sure you do it the right way,' and it's your mission to say, 'no, really, make sure you do it the right way.' "
The TSA spokesman disputed Steinhardt's claims that the agency's story about CAPPS II has changed, although the agency has supplied additional information to counter fears expressed by privacy groups that CAPPS II would screen for late alimony checks or parking tickets, he said. "We have described and articulated the mission of CAPPS II the same since day one," he said.
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