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Obama urges Russia to "move back its troops" from its border with Ukraine - we hear from a NATO Lieutenant-Colonel of the Alliance's concerns.

Turks go to the polls after their government blocked access to YouTube and Twitter - Paul Moss reports from Istanbul and speaks to the ruling AKP.

Ritula Shah, in Brazil, is shown around the headquarters of security operations for the World Cup.

And we look ahead to the first gay weddings in England and Wales with one couple getting married in the morning.

Presented by Philippa Thomas.