text: Fannie Mae Used Improper Accounting-Probe  WASHINGTON (Reuters) - Fannie Mae used improper accounting  to manipulate its quarterly earnings reports, regulators said,  touching off the mortgage finance industry's second such  controversy in less than 18 months.
inputs: Fannie Mae Used Improper Accounting-Probe  WASHINGTON (Reuters) - Fannie Mae used improper accounting  to manipulate its quarterly earnings reports, regulators said,  touching off the mortgage finance industry's second such  controversy in less than 18 months.