Government scientists can expect new performance-based pay schedules under new rules from the U.S. Office of Personnel Management.
Sensenbrenner accuses ATF of “amazing lack of judgment.”
A report finds dozens of weapons have been misplaced over the years.
The recommendations follow an accident last November.
A rule outlining the possible change will be published in Friday's Federal Register.
The Senate Commerce, Science and Transportation Committee has canceled a hearing that was scheduled for Thursday about passenger and freight rail safety.
The hearing was scheduled to allow lawmakers to examine regulations for railroads after a spate of high-profile passenger and freight accidents last year, including an oil train derailment in North Dakota that spilled 400,000 gallons of crude in December and a crash on New York Metro-North commuter railway in November.
Rep. Steve Cohen (D-Tenn.) on Tuesday introduced a new bill that would let the White House drug czar study the issue of legalizing marijuana for medical purposes, something it is currently unable to do under federal law.
Less than a third, 31 percent, support stricter gun laws.
The Marijuana Policy Project said DEA administrator "unfit for position."