New $100 Bill Heads for Circulation, Aims to Improve Security

Despite years of production-related delays, the updated $100 bill has undergone a major makeover that includes a color-changing ink well, 3-D security ribbon, and more texture on Benjamin Franklin's collar.

The new, more expensive C-note is scheduled to enter circulation Oct. 8, and also has a higher calling: It aims to fight back against counterfeiters by using better printers and technology.

The modifications will help people check for fake $100s without going to a bank or using a blacklight, said Michael Lambert, a deputy associate director at the Federal Reserve.