QABATIYA, West Bank (Reuters) - Palestinian militants publicly executed an accused collaborator with Israel with machineguns in a West Bank town square on Friday after a throng of Palestinian onlookers called for him to die. Wild celebrations broke out among the hundreds of spectators after four gunmen from the al-Aqsa Martyrs Brigades, part of President Yasser Arafat's Fatah movement, shot father-of-two Muhammad Rafiq Daraghmeh, 45, in Qabatiya. Militants had hustled Daraghmeh into the square before assembled townsfolk and told them: "This man, as you know ... gave information to Israel on the whereabouts of our fighters. What should his sentence...