Cashin: 'Significant' Risk of 'Bursting Aflame' in Europe

Thursday, 31 May 2012 | 9:05 AM ET

In a conversation on "Squawk on the Street," Art Cashin of UBS says he's more worried than ever that a run on banks in Greece or Spain, or worse, could happen before Europe's leaders agree on a practical solution to the continent's debt problems.