BAGHDAD, Iraq - A car bomb exploded on Baghdad's airport road Tuesday as a U.S. military convoy was passing by, wounding four American soldiers and destroying an armored Humvee, the U.S. military said. Around 10 civilian vehicles were also wrecked in the blast on the highway leading to the capital's international airport, a police official said. He said there were civilian casualties but did not immediately have an exact figure. Ambulances rushed at least two women, a child and three wounded men to a nearby hospital, doctors said. One of the women was covered in blood. Maj. Phil Smith of...