Homeland Security Secretary Kristi Noem said the Transportation Security Administration is evaluating whether to loosen the long-standing cap on liquids that passengers can take through airport checkpoints, a rule that has limited containers in carry-on bags to 3.4 ounces (100 milliliters) since 2006. Noem told a Washington conference that revising the liquids restriction could be the agency’s “next big announcement,” adding that new scanning technology and a multi-layered screening process give TSA flexibility to streamline security while maintaining safety standards. She did not give a timetable but said pilots would be launched at select airports before any nationwide rollout. The liquid limit was introduced after British authorities disrupted a plot to detonate liquid explosives on transatlantic flights in 2006. A potential change would follow TSA’s recent decision, announced on 8 July, to end the requirement that travelers remove their shoes—a mandate imposed after the 2001 “shoe-bomber” incident. Noem said her goal is an airport experience where passengers can walk through security with carry-ons in “about a minute.”