Instead of telling his Cabinet to make minor reductions in their budgets, President Barack Obama might want to ask the IRS to start collecting more than $1 billion in back taxes that the agency has forgotten about. A new report from the Treasury Inspector General for Tax Administration found, after conducting an audit of the IRS’s computer data records, that 448 delinquent accounts—each owing $1 million or more in taxes, penalties and interest—were not being pursued by tax collectors. Auditors determined that a variety of computer or accounting system mistakes had caused the accounts to fall off the radar of IRS officials.