Crusading pop star Bono put his six-nation Aids campaign in jeopardy when he was halted at the airport in Lesotho, South Africa because of his bulging passport. The U2 frontman, who was scheduled to jet to Rwanda and Tanzania from Lesotho, was shocked to discover there were no pages left in the document for any more onward travel. The Irish Embassy rushed to Bono's aid, issuing him with an emergency passport. Press photographer KIM NAUGHTON, who is chronicling the singer's African odyssey, stepped in to help, capturing Bono's image - without his trademark wraparound sunglasses - as a makeshift passport snap. He said, "I can't believe we've been so stupid."