US senators hold briefing on Lockerbie bomber's release
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Two US senators are holding a news conference in which they are expected to reveal what they say is evidence of commercial pressure behind the release of Lockerbie bomber Abdelbasset Ali al-Megrahi.
Senators Robert Menendez and Frank Lautenberg's briefing is being attended by relatives of those who died in the 1988 bombing.
The event comes on the first anniversary of the release of Megrahi by Scottish ministers, who acted in response to medical advice that he would only live three months because of cancer.