Health and Human Services Secretary Tommy Thompson told a Senate committee today that the anthrax included in a letter sent to Senate Majority Leader Tom Daschle's (D-SD) office yesterday was "finely milled and highly potent." Thompson said investigators have not yet determined that the anthrax is weapons-grade, which would suggest a government might be behind the recent attacks. Thompson testified this morning before the Senate Governmental Affairs Committee and the subcommittee on international security, proliferation and federal services. The Senate...