Thatcher's visit to the new president is anticipated as a love-fest.
Neil MacGregor takes five journeys overseas to hear what others think of modern Britain.
Alistair Cooke reflects on Tony Blair's popularity ratings in America.
Can Britain save the oceans by protecting its overseas territories? Tom Heap reports.
Matthew Parris on funny diplomatic despatches, including the tale of John Major's horse.
Featuring despatches from the British diplomats hunting for bison with Hermann Goering.
Brian Cox and Robin Ince transport The Infinite Monkey Cage to GCHQ.
The long industrial dispute over union membership at the government communications centre.
BBC security correspondent Gordon Corera goes inside Britain's secret listening station.
Mike Thomson discovers how close Britain's greatest cold war secret was to being exposed.
The domestic challenge facing Britain's biggest secret intelligence service.
Stories from the hidden past of the intelligence agency.
Philip Stephens investigates British foreign policy.
Has Britain got too close to Rwanda after its remarkable recovery from the 1994 genocide?
How the intelligence agency changed direction after the Cold War
Mike Thomson investigates the collapse of the US UK special relationship in 1973.
Only twice has America been successfully invaded by outside enemy forces.
Melvyn Bragg and his guests discuss the War of 1812 between America and Great Britain.