Independent on Sunday: Umar Farouk Abdulmutallab told US investigators that about 20 other young Muslim men were being coached in Yemen to blow up planes using a technique identical to the one he employed, CBS News has reported, quoting a British intelligence source. The broadcaster said it had also established that part of the investigative focus had switched to Ghana, where Abdulmutallab stayed before flying to Lagos, Nigeria, to begin his mission that ended in smouldering failure as Northwest Flight 253 descended into Detroit on Christmas Day. The FBI has officers on the ground in Ghana and believe it is likely the terrorist may well have had his final al-Qa'ida briefing, and supplied with equipment and explosives, there. The Nigerian arrived in Accra, Ghana, on 9 December from Ethiopia, and remained there until 24 December, when he made the flight to Lagos. It is now known that the Ghanaian hotel he listed on his immigration form was not the one where he was actually stayin...