Filipino extremist leader Mohammad Ali Tambako is escorted by police and military personnel after arriving at a military airbase in Manila on March 16, 2015, a day after he and five of his colleagues were arrested in the southern island of Mindanao. Philippine authorities arrested a Muslim breakaway leader who had coddled a bomb-maker listed as one of the US' "most wanted terrorists", the military chief said on March 16. AFP PHOTO/TED ALJIBE