As reported by Bloomberg Businessweek and scant others, account holders withdrew a record $114 billion in just one week, which represents the largest one-week withdrawal sum made in America since the September 11, 2001, terrorist attacks.

The data, which accounts for all cash withdrawals made from the nation’s 25 largest banks, has reportedly shocked many financial analysts who say they are unsure exactly what sparked this minor bank run. Some have speculated that the December 31, 2012 expiration of the Transaction Account Guarantee (TAG) insurance program, which was designed to protect smaller banks from insolvency, may have played a role in triggering what appears to have been a wave of panic withdrawals.