Baltimore-AP -- A Guilford College student who says he placed box cutters and other banned items on planes to test security has been released on his own recognizance. He is not allowed to fly on airplanes. Nathaniel Heatwole is due back in court in Baltimore on November tenth. The 20-year-old tells federal agents he went through normal security procedures at airports in Baltimore and Raleigh-Durham. The items had been aboard the planes for nearly five weeks before they were found. The F-B-I says box cutters the college junior placed on two Southwest Airlines planes went undiscovered for four weeks. A...