WASHINGTON, April 4 (UPI) -- The U.S. Congress is investigating relations between the chemical industry and scientists hired by the EPA to check chemical safety levels, officials said.

WASHINGTON, March 5 (UPI) -- A House oversight panel voted to subpoena the president of Hallmark/Westland Meat Co. to testify about the United States' largest recall of beef last month.

WASHINGTON, Feb. 19 (UPI) -- U.S. regulators acknowledge the Chinese firm supplying the active ingredient for Baxter Pharmaceutical's heparin was never inspected due to a name mix-up.

WASHINGTON, Nov. 29 (UPI) -- U.S. congressional negotiators reportedly are nearing agreement on an energy bill that would boost vehicle efficiency standards and increase biofuel use.

WASHINGTON, Sept. 30 (UPI) -- Critics of the U.S. Environmental Protection Agency claim the White House's lax attitude has emboldened polluters to break federal laws.

WASHINGTON, July 21 (UPI) -- The struggle over fuel-economy is pitting a powerful U.S. representative from Michigan against the ambitious first female speaker of the House.

WASHINGTON, Jan. 1 (UPI) -- The National Rifle Association is warning that Democratic leadership on Capitol Hill "could be one of the most unfriendly" to the NRA.

WASHINGTON, Dec. 8 (UPI) -- A U.S. scientist working on Alzheimer's has pleaded guilty to accepting consulting fees and travel expenses from a drug manufacturer without proper approval.

WASHINGTON, Oct. 30 (UPI) -- Congressional Democrats in Washington are criticizing a new Medicare handbook they feel is weighted toward private insurance plans.