The rising inflation of the U.S. dollar. While inflation is on average 2% each year, recent stimulus spending is poised to greatly increase the level of inflation and decrease the dollar's purchasing power.

With the recent stimulus packages, the United States has added around $2.4 trillion to the economy. This has many worrying about the inevitable decrease in the dollar's purchasing power and the rise in inflation.

Money Supply
https://fred.stlouisfed.org/series/M1.