The IRS yesterday severed its ties with ACORN, the profoundly corrupt community organizing group embroiled in a seemingly never-ending string of controversies, criminal investigations and voter registration fraud charges. Last week, the U.S. Census Bureau also severed ties with the group. The latest controversy is over the series of videos covertly taped by new media journalists James O’Keefe and Hannah Giles. In these videos, O’Keefe and Giles, posing as a pimp and prostitute, are given tax advice by ACORN representatives in different cities across the country.  The tax advice included listing “performance artist” as the prostitute’s employment code in...