Embattled leftist community organizing group ACORN has filed a lawsuit against the conservative activists who staged a sting operation against them: ACORN Sues Over Secret Video, Claiming Wiretapping Violation.

ACORN, the community organizing group embarrassed recently in a video sting, said Wednesday that it needs to determine whether it has major internal problems, but it also struck back, filing a lawsuit against the people who conducted the secret investigation.

Bertha Lewis, head of the Association of Community Organizations for Reform Now, told reporters in a conference call that ACORN does not support criminal activity and that it thinks the filmmakers should have obeyed Maryland laws. In the state, where one video that embarrassed ACORN was made, the act constituted illegal wiretapping, the suit says. …

Lewis said she wants a newly hired investigator to find the organization’s weak spots, and she said she will make public the findings. Scott Harshbarger, a former Massachusetts attorney general hired for the investigation, vowed a “robust, no-holds-barred” review that would be “transparent.” Lewis said ACORN in the meantime will have to turn away many low-income clients it normally helps with threatened foreclosure or tax preparation.