US to search aircraft after boxcutters found = = = = Friday October 17, 12:34 PM EDT = WASHINGTON, Oct 17 (Reuters) - All commercial aircraft will be searched b= y security personnel within the next 24 hours after the discovery of box = cutters and other items aboard two Southwest Airlines Inc. (LUV) planes, = federal law enforcement officials said on Friday. They said the FBI, working with the Department of Homeland Security, is i= nvestigating the discovery of the box cutters, which the Sept. 11, 2001, = hijackers used, and the other items found late on Thursday in bags on the= planes bound for Houston and New Orleans. = =A92003 Reuters Limited. = Roger EWROPS