UK: Bombers who killed a policeman in Northern Ireland may have used explosives from Libya

 _____________________________________, _____________________________________, agency aims, april, april 2011, bombers, british government, cem ertur, christopher hope, col gaddafi, daily telegraph, david cameron, downing st, downing street, duncan gardham, explosives, global research, ira, ireland, irish republican army, joint declaration, killed, libya, lockerbie, ludwig de braeckeleer, marcello mega, mark hughes, minister, minister john major, moammar gadhafi, moussa koussa, mr koussa, new york civil liberties union, news international, northern, northern ireland, operation darkening clouds, pc ronan kerr, pc yvonne fletcher, prevent revenge attacks, prime, prime minister, prime minister albert reynolds, prime minister david cameron, prime minister recep tayyip erdogan, richard marquise, semtex, sunday times, used, wall street journal, wall street journal europe