"The Cato Institute, a libertarian think tank, is calling on Congress to investigate whether the FBI is spying on it and other domestic political groups after public records requests raised the possibility that the Bureau has files on Cato and others.
"Patrick Eddington, a research fellow at Cato, has submitted more than 200 Freedom of Information Act (FOIA) requests for FBI files on political advocacy groups, civil liberties organizations, think tanks, and publications across the political spectrum.