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Betting on bitcoin

Wednesday, 16 Apr 2014 | 4:40 AM ET

Loyalists around the world have embraced it as the cryptocurrency of the future, but some big names on the street differ widely in their beliefs about bitcoin. The Oracle of Omaha thinks it's a "joke." Tech entrepreneur Marc Andreessen counters that Buffett is out of touch, while bitcoin believers like Jonathan Rumion fully embrace the digital currency by buying groceries with bitcoin and even getting paid in bitcoin. CNBC's Mary Thompson reports.