From the Deseret News:

Rep. Jason Chaffetz wants the Census Bureau to certify in writing that it is sure that enumerators hired to go door-to-door next year do not have criminal records.
He joined three other Republicans in a letter to Census Bureau Director Robert Groves on Monday raising concerns because a Governmental Accountability Office study recently said the Census Bureau may have accidentally hired 200 criminals.
The GAO said that problem came because those people had “unclassifiable fingerprints” that led to incomplete background checks. The bureau said the people had been used in early work to check on addresses to allow a complete mailing of census forms next year. The bureau has said it has been addressing the problem.
Chaffetz and the other GOP members of a subcommittee that oversees the census wrote asking for “a commitment in writing” that “the Census Bureau will not hire anyone with any criminal record to be an enumerator” or any other position “that will interact with the public.” …

UPDATE: Readers worry that might go too far; an e-mail:

Would this include a 65 year-old retiree who was stuck on stupid in his/her late teens and had a DUI or shoplifting conviction, but got smartened up at Hard Knox U and lived a straight life for 40 years? That would seem to be what “anyone with any criminal record” would imply?