MANILA, Philippines -- Muslim militants freed a Filipino-American woman after 2 1/2 months in captivity in the southern Philippines but are still holding her 14-year-old son and a relative, authorities said Monday.Gerfa Yeatts Lunsmann was dropped off by boat late Sunday at a wharf and walked to nearby Maluso township on southern Basilan Island where a patrolling police team picked her up, said military spokesman Lt.