U.S. to ease flight rules, threat remains - Chertoff

WASHINGTON (Reuters) - Restrictions on U.S. airline travelers will likely be eased sometime on Sunday but Homeland Security Secretary Michael Chertoff said the threat of an attack on airliners remained. 

The Transportation and Security Administration, or TSA, barred all liquids, except baby formula and breast milk, from flights last week because of a plot to bring down jetliners as they flew from London to the United States.