KILLEEN, Texas (AP) — An alert issued by the Army says an AWOL Muslim soldier who had weapons stashed in a motel room near Fort Hood has admitted planning an attack on the Texas post.The email alert sent to all Army units Thursday and obtained by The Associated Press says the man arrested by Killeen police a day earlier had a large quantity of ammunition, weapons and a bomb inside a backpack.It says he admitted under questioning to planning an attack on Fort Hood.The FBI plans to charge Pfc. Naser Abdo (AB'-doh) with possessing bomb-making materials after gunpowder and other items were found in his nearby Killeen motel room.Fort Hood is the same post where 13 died in 2009 in the worst mass shooting ever on a U.S. military installation.