On one hand, some say that data aggregators can help in the fight against terrorism by "leveraging the power of information". On the other hand, they may help terrorists. Or at least some Democrat congressmen think they may and the Congress should investigate:
Democrats lambaste ChoicePoint data leak | CNET News.com:
"ChoicePoint's recent privacy snafu has raised the hackles of some Democrats in Congress, who are demanding an investigation into the 'terrorism risk' posed by information brokers. On Thursday, Sen. Bill Nelson of Florida and Rep. Bennie Thompson of Mississippi said they are planning to ask the Department of Homeland Security and the Government Accounting Office to look into how terrorists could use ChoicePoint and similar companies to sneak into the United States and maintain their cover...."