Think Progress hits the nail on the head:
When a department store calls the police to report a shoplifting employee, no one says the department store is guilty of consumer fraud. The same principle applies here. The small number of staffers who have submitted fraudulent forms are violating ACORN’s mission. Anyone caught defrauding should be prosecuted, and ACORN says it is assisting in that effort. ACORN should work harder to catch these employees and ensure that they are held responsible.