US currency is one of the tools that keeps our economy running, but there If you hold up a $5 bill or higher to light, you will see a security strip.
Does the plastic strip embedded in U.S. currency enable the government to track it?.
Take American paper currency more than the one (one dollar bills do not contain the magnetic strip) and hold it up to a bright light. I recommend doing this with.
Banks first used metallic threads to block counterfeiters back in 1948. In the 21st century, U.S. money uses plastic threads intstead.