A series of bomb attacks in Kandahar province, Afghanistan, have killed 21 American soldiers in 48 hours. The attacks, which began Friday, leave the death-toll of the NATO coalition at 484. This year, the total number of deaths is expected to surpass last year’s total of 521. The coalition says the increasing numbers are because of an influx of insurgent reinforcements. Lately, the Taliban is using homemade bombs made from old shells and homemade explosives concealed in roads, tracks, walls, streams and buildings.