London - Two Libyans accused of the Lockerbie bombing yesterday pleaded not guilty to all the charges against them - the first time a plea has been formally taken. Mr Abdelbaset Ali Mohmed Al Megrahi (47) and Mr Al Ami Khalifa Fhimah (43) are accused of conspiracy, murder and a breach of the Aviation Security Act. Neither of the two accused men was present at yesterday's hearing at the High Court, where a bid by the BBC to raise the issue of whether the Lockerbie trial should be televised was rebuffed.