House and Senate negotiators reached an agreement Thursday to extend the USA Patriot Act, the government’s premier anti-terrorism law, before it expires at the end of the month. But a Democratic senator threatened a filibuster to block the compromise. “I will do everything I can, including a filibuster, to stop this Patriot Act conference report, which does not include adequate safeguards to protect our constitutional freedoms,” said Sen. Russ Feingold (news, bio, voting record), D-Wis., who was the only senator to vote against the original version of the Patriot Act. Full Story