BAGHDAD, Iraq - U.S. troops detained the head of Iraq's largest Sunni Muslim political party on Monday, according to party officials, police and the man's wife. South of the capital, two suicide bombers attacked a crowd of policemen in Hillah, killing 20 and wounding nearly 100. Iraq's president condemned the arrest of Mohsen Abdul-Hamid, head of the Iraqi Islamic Party, and demanded his immediate release. Abdul-Hamid was taken from his home in the western Baghdad suburb of Khadra at about 6 a.m., along with his three sons and four guards, said party-secretary-general Ayad al-Samarei. Al-Samarei accused American soldiers of raiding...