Air marshal - turned - whistle - cutter says he was hired by the FBI . He 's been questioned by investigators from the tax - collection agency . A congressional committee is seeking more people with stories like his . The FBI defends the ` ` accuracy and integrity '' of its audits .
Air marshal-turned-whistle-blower says he was targeted by the IRS . He 's been questioned by investigators probing the tax-collection agency . A House committee is seeking more people with stories like his . The IRS defends the `` fairness and integrity '' of its audits .