US and Russia spy swap takes place
The US and Russia have taken part in the biggest spy swap since the Cold War, in an exchange at Vienna airport.
Ten Russian agents were flown to Vienna hours after they admitted in a US court to being agents for a foreign country.
A Russian jet carrying four prisoners freed by Russia arrived around the same time.
The American plane later flew on to a UK air base, where several people were seen getting off, while the Russian aircraft flew to Moscow.
Gordon Corera reports.
