UK Prime Minister David Cameron has agreed to meet four U.S. senators to discuss allegations that BP lobbied for the release of the Lockerbie bomber.

Senators from New York and New Jersey wanted to meet Cameron over the release of Abdelbaset Ali al-Megrahi, who has terminal prostate cancer.
Cameron had earlier refused a meeting, saying he could not fit it into a “very full schedule” in the U.S.
The 1988 bombing of Pan Am flight 103 killed 270 people, mostly Americans.
A Downing Street spokesman said of the change of plan: “The prime minister recognizes the strength of feeling and knows how important it is to reassure the families of the victims.
“We are happy to see them face to face and find time in the diary.”
'No daylight'
Cameron is making his first visit to the U.S. as prime minister, and talks with President Barack Obama are expected to focus on the war in Afghanistan, the Gulf spill and the Megrahi case.
The Libyan was released by Scottish Justice Minister Kenny MacAskill in August last year on health grounds and was said to have as little as three months to live.
The new UK coalition government has said the decision was a “mistake”.
Writing in the Wall Street Journal ahead of a meeting with the president, Cameron said there was “no daylight” between the views of the UK and the U.S. on the release of Megrahi.
“I have the deepest sympathies for the families of those killed in the bombing. Abdelbaset al-Megrahi was found guilty of murdering 270 people. They weren't allowed to go home and die in their own bed with their relatives around them,” he said.
“I never saw the case for releasing him, and I think it was a very bad decision.”
Asked on BBC Breakfast about the allegations of lobbying, Cameron said: “I have no idea what BP did, I am not responsible for BP.”
But he reiterated his condemnation of the original decision.
“All I know is as leader of opposition I couldn't have been more clear that I thought the decision to release al-Megrahi was completely and utterly wrong,” he said.
BP has admitted lobbying the British government in 2007 over a prisoner transfer agreement (PTA) with Libya, but denied specifically discussing Megrahi.
'Negative impact'
U.S. Secretary of State Hillary Clinton said the release of Megrahi was “not in the interest of justice”.
She told the four senators in a letter: “That al-Megrahi is living out his remaining days outside of Scottish custody is an affront to the victims' families, the memories of those killed in the Lockerbie bombing, and to all of those who worked tirelessly to ensure justice was served.
“While any decision to review or reconsider the decision to release al-Megrahi remains a matter for the Scottish authorities, we have maintained and will continue to maintain in our exchanges with Scottish officials our unshakable conviction that al-Megrahi should not be a free man.”
In response, the Scottish government said the decision was made “based in strict justice criteria and no other factor”.
A spokesman said: “The issues being raised in the United States at present regarding BP refer to the prisoner transfer agreement negotiated by the governments of the UK and Libya, and have nothing to do with the decision on compassionate release which is a totally different process, based on entirely different criteria.”
BP has acknowledged that it warned the previous Labour government of a possible “negative impact on UK commercial interests” of slow progress being made agreeing a prisoner transfer agreement with Libya.
But it has insisted that it had no discussions with either the UK or Scottish government over the issue.
On Sunday, the chairman of Westminster's all-party group on Libya, Conservative MP Daniel Kawczynski, called for a full public inquiry into the decision to release Megrahi.
(Source: BBC)