TAMPA - A former University of South Florida student will be sentenced today for holding a rifle at a shooting range for less than three minutes. Karim Moussaoui was convicted in April of a federal weapons charge of possessing a firearm in violation of his student visa. The Moroccan native and engineering student had gone to the Shoot Straight Tampa shooting range with a friend, Youssef Megahed, last summer and posed for pictures holding a .22-caliber rifle Megahed had rented. Because Megahed is a legal, permanent resident of the United States, he was allowed to posses and rent the weapon....