It's all about the 3D benjamins. Treasury unveils new high-tech $100 bills with '3-D Security Ribbon':
You won't need special glasses to spend the new $100 bills - even if they do boast 3-D technology.
The new currency introduced Wednesday features a variety of new security measures, including a blue "3-D Security Ribbon" that features tiny Liberty Bells.
The bells change to the number 100 when the bill is tilted, one of several changes that Treasury officials hope will frustrate counterfeiters. The 3-D strip is actually woven into the bill, rather than printed on the paper.
