TEHRAN, Jan 21 (AFP) - Prospective Palestinian suicide bombers should not miss the opportunity of striking at the increased number of US troops in the region, a leading Iranian hardliner wrote Tuesday. In an editorial in his Keyhan newspaper, Hossein Shariatmadari reasoned that American troops were a far easier target for "martyrdom-seeking operations" than Israelis. Hundreds of young Palestinians are ready to carry out martyrdom-seeking operations... so why should they not make the most of the presence of US troops in the region to take revenge," the vocal hardliner said. "It would be easier than carrying out such operations in...