Perhaps the Bureau of Engraving and Printing should have been making commercials for automated payment machines:
As colorful new $20 bills circulate around the nation, more consumers are finding out that the notes do not work on automated payment machines like those found in self-service checkout counters at grocery stores.
The first calls started coming into the U.S. Treasury Department Bureau of Engraving and Printing two days ago, frustrating government officials who had worked to overcome the vending machine problems that followed the 1998 redesign of the bill.
This time the problem seems to plague mostly automated payment machines � a relatively recent arrival in the industry, the bureau said.
. . .
[M]ore than a year before the new bills were put into circulation, the bureau reached out to the vending machine industry, transit authorities and the gambling industry to help them get ready for the new bills, [spokeswoman for the Bureau of Engraving and Printing Dawn] Haley said.
Vending machine manufacturers received test decks of currency to try out on their software and hardware.
But nobody thought about the automated payment machines until the first calls started coming in to the bureau after the new currency was put into circulation.
Ooops.