With more than 55 billion U.S. bank notes circulating the globe, keeping the American dollar safe from counterfeiters is an ever-evolving challenge. This video explores the many safety features that countries employ to protect their cash, from frequent redesigns and watermarks to holograms and secret molecular identifiers.
Questions:
- What are some design features that countries use to keep their money safe from counterfeiters?
- Why hasn’t the U.S. redesigned the one dollar bill for more than 60 years? Do you think Continue reading
