Allegedly on terror watch list, U.S. warned by his father, how did the Flight 253 bomb suspect not get pulled? Questions are being asked about how a man “known” to international security officials got the material on board, following a Christmas attempted airline bombing. The suspect was thought to have boarded KLM Flight 588 in Lagos, transferring on to Delta Airlines Flight 253 at Schiphol Airport in Amsterdam, which departed with 278 passengers on board at 8.45 am local time. He would have gone through airport security in Lagos Airport, which had cleared a U.S. security audit only last month, but faced only minimal further checks in the transit lounge in Holland. Latest facts at: