The powerful House Oversight and Government Reform Committee is expanding its investigation of possible ethics violations by the Financial Crisis Inquiry Commission, including improper "backdoor communications" between the panel and trial lawyers suing major banks over subprime investments, IBD has learned. The Democrat-appointed commission, tasked with examining the "root causes" of the crisis, used its subpoena power to extract millions of pages of confidential memos and emails from banks. Those documents were posted on the Web and are now being used in major litigation against these banks. Some documents posted on the FCIC site include correspondence with federal regulators that...