More than two-thirds of America's youth would fail to qualify for military service because of physical, behavioral or educational shortcomings. That makes it tough to recruit soldiers. // The White House worries that Islamic militants are developing a new generation of bombs that could be smuggled onto planes. Officials are considering increased security at airports. // In a 5-4 decision the U.S. Supreme Court ruled today that "closely held" companies can on religious grounds opt out of a federal health-care law requirement that companies provide contraception coverage for employees. // Letters.