Airline Screening Plan Wins Tentative Praise

Some members of Congress praised the new program but complained that they were not briefed on it in advance.

“While this new policy is a step in the right direction, I hope to work with the White House on a more coordinated rollout in the future,” said Representative Bennie Thompson, Democrat of Mississippi, the chairman of the House Homeland Security Committee.

The committee’s top Republican, Representative Peter T. King of New York, likewise called the new measures “a significant step forward,” but he criticized the White House for what he said was a pattern of failing to share information with Congress.

A transportation security official said Mr. King had been given advance notice of the changes and offered a classified briefing.