The Federal Emergency Management Agency's notorious trailers were in the news again this weekend: units being used by flood victims in Iowa and Indiana were found to contain mold.

In none of the cases did the mold appear health-threatening, but it's another black eye for FEMA's temporary housing solution of choice -- and raises concerns about whether the agency has done enough to ensure safety and quality. Earlier this month Congress grilled manufacturers on the toxic levels of formaldehyde found in many of the trailers used in the Gulf Coast following hurricanes Katrina and Rita. The high levels of formaldehyde have been blamed on cheap materials and poor ventilation on the trailers, some of which had levels four to 11 times as high as the typical home. CBS News posted an online-only interview with two former Gulf Stream Coach workers about the company's lack of concern for the health of its employees and eventual inhabitants of the hastily built trailers.

But rest assured, FEMA is a different agency today.