I thought I'd heard every possible charge about corruption at ACORN, a feisty, union-backed activist group that became infamous last year when it was investigated for voter registration fraud in 15 states. Just yesterday, 11 ACORN workers were accused by Florida prosecutors of falsifying information on some 900 voter registration forms. But this morning brings a Fox News report that ACORN officials in Baltimore offered to help get a housing loan and falsify tax documents for a proposed house of prostitution that would employ underage girls from El Salvador. ... In helping Mr. O'Keefe set up his supposed brothel, ACORN...