A top Republican House member on Wednesday proposed eliminating the Bureau of Alcohol, Tobacco, Firearms and Explosives, writing a bill that would freeze all hiring at the troubled agency and require the Justice Department to come up with a plan for transferring its duties to other agencies. Rep. F. James Sensenbrenner Jr., the Wisconsin Republican who wrote the bill, called it both a chance to streamline government and to clean up an agency that’s been criticized from the right and the left for botched gun-running operations.