The journalists at the center of an embarrassing scandal for the grass-roots organization ACORN also paid a visit to the ACORN office in San Diego County. Grass-roots organizing has gotten a black eye on the national stage after undercover videos involving ACORN, a controversial group with a local office, were released that were shot during a series of visits from a hidden-camera crew. At 6 p.m. on Wednesday, a video was broadcast on Fox's "Hannity" that purported to show a San Diego ACORN staffer discussing human trafficking with two people who were undercover. Earlier in the day, local ACORN officials,...