The Department of Justice is investigating several lenders and may target others as a result of referrals from other regulators for unexplained concentrations of high-priced home loans based on an analysis of 2004 pricing data reported by lenders under the Home Mortgage Disclosure Act. Responding to a written inquiry from Massachusetts Rep. Barney Frank, ranking minority member on the House Financial Services Committee, the Justice Department acknowledged ongoing investigations of lenders that showed “statistically…