Scottish First Minister Alex Salmond has insisted he did not regret the controversial release from prison of the Lockerbie bomber.
He said his administration acted in good faith on the evidence available at the time when the decision was taken to release Abdelbaset al-Megrahi on compassionate grounds, saying he had three months to live.
Prime Minister David Cameron's first visit to Washington as premier has been overshadowed by the row over al-Megrahi's release, with US senators suspicious that oil giant BP may have had a hand in the affair.