The marine who disappeared from his post in Iraq and resurfaced 19 days later in Beirut denied yesterday that he had deserted. Waseef Ali Hassoun told reporters that he was “captured and held against my will by anticoalition forces.” Military officials say an investigation is underway and will continue at Corporal Hassoun base in North Carolina. Luitenant Colonal David Lapan said at the press briefing that Hassoun’s words were “his own,” and had been vetted only to check for classified information.