Pres. Barack Obama is given to cute vehicular metaphors about the state of the economy. We were "in a ditch," then got out and hit a "bump in the road." This is studiously folksy. It also vastly understates the nature of our situation.
President Obama is presiding over an unspooling social catastrophe in the form of unemployment, and especially long-term unemployment. For all those people who are chronically unemployed, it's as if they have been hit by the proverbial car and then backed over by it again and again.