A sign reading 'Wegelin and Co Privatbankiers' on the side of a building
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Deadline for Swiss banks to sign up to disclosure deal

Switzerland's private banks have until today to declare whether they will sign up to a US transparency agreement which would see them divulge client information.

Many claim the move is a crucial step in trying to clamp down on tax evasion around the world but it would also end the long tradition of banking secrecy in Switzerland.

Imogen Foulkes reports from Berne.

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