The federal-state unemployment insurance (UI) program relies on state trust funds to hold enough reserves to meet benefit needs during economic downturns. The sufficiency of such "forward funding" has been a policy concern for decades, particularly during the recent recession, which has caused very high unemployment rates. While the economy added jobs in March 2010, unemployment remains very high and has continued to rise in most states, suggesting that state UI programs will continue to face serious financial challenges for at least the near future.