Two Fort Stewart soldiers were killed in Afghanistan in February. A Hunter Army Airfield Ranger was killed in April. With the war nearing its 11th year, and nearly 3,000 U.S. and Coalition casualties so far, many Americans are questioning whether the war worth the cost. One poll says only 27 percent of Americans back the Afghanistan war. Osama bin Laden once launched attacks from that country. Now he is gone. Should U.S. troops be, too?