Attorney General Eric Holder said Tuesday that he's ordered a Justice Department probe into an IRS program that singled out Tea Party and other conservative groups for additional scrutiny in their applications for tax-exempt status. Holder announced the investigation during a press conference in Washington. He said the FBI was coordinating with the Department of Justice to see if any laws were broken. He called the practice "outrageous and unacceptable," echoing remarks from President Obama a day earlier. The probe comes as newly obtained documents show the current IRS chief knew about the agency's targeting of Tea Party groups as...