Norton Writes Postal Service About Increase in Mail Theft, Particularly of Checks, With Universal Keys "Congresswoman Eleanor Holmes Norton (D-DC) wrote the United States Postal Service (USPS) about the increase in mail theft, particularly of checks, through the use of stolen universal keys. Thieves have been using universal keys to steal checks and then change the payees and dollar amounts. Norton requested a response by May 30, 2022, outlining the steps USPS is taking to remedy the problem."