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Pictures | Tue Sep 17, 2013 | 1:59pm EDT

Winklevoss twins say Bitcoin could become a country's currency

Bitcoin enthusiast Mike Caldwell puts away his coins at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Bitcoin enthusiast Mike Caldwell puts away his coins at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Bitcoin enthusiast Mike Caldwell puts away his coins at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart
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Bitcoin enthusiast Mike Caldwell poses for this photo illustration at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Bitcoin enthusiast Mike Caldwell poses for this photo illustration at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Bitcoin enthusiast Mike Caldwell poses for this photo illustration at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart
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Some of Bitcoin enthusiast Mike Caldwell's coins in this photo illustration at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Some of Bitcoin enthusiast Mike Caldwell's coins in this photo illustration at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Some of Bitcoin enthusiast Mike Caldwell's coins in this photo illustration at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart
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Bitcoin enthusiast Mike Caldwell poses in his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Bitcoin enthusiast Mike Caldwell poses in his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Bitcoin enthusiast Mike Caldwell poses in his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart
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Some of Bitcoin enthusiast Mike Caldwell's coins are pictured at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Some of Bitcoin enthusiast Mike Caldwell's coins are pictured at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Some of Bitcoin enthusiast Mike Caldwell's coins are pictured at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart
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Bitcoin enthusiast Mike Caldwell poses at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Bitcoin enthusiast Mike Caldwell poses at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Bitcoin enthusiast Mike Caldwell poses at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart
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Bitcoin enthusiast Mike Caldwell poses at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Bitcoin enthusiast Mike Caldwell poses at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Bitcoin enthusiast Mike Caldwell poses at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart
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Bitcoin enthusiast Mike Caldwell poses at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Bitcoin enthusiast Mike Caldwell poses at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart

Bitcoin enthusiast Mike Caldwell poses at his office in Sandy, Utah, September 17, 2013. REUTERS/Jim Urquhart
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