Just because poorly-designed government levees flooded your home doesn't mean you deserve secure temporary housing that isn't filled with toxic gas.

No, see, if families get too comfy in their 300sf FEMA trailers, that might weaken their resolve to rebuild.

For example:

Prompted by a WAFB 9NEWS INVESTIGATION, FEMA said Monday it will replace locks on as many as 118-thousand trailers used by victims of hurricanes who are living in trailers provided by the government agency.

FEMA says some keys could open as many as 50 different locks. At two FEMA trailer parks in Baton Rouge, our investigation revealed residents who were able to open not only their trailers, but also trailers of other individuals parked only a few spaces away.

There are growing questions about how long FEMA has known of the problem and whether the agency only chose to act after being presented with the results of our investigation.

A security guard at a large FEMA trailer park in Louisiana says FEMA has known about the problem for "several weeks" and chose to do nothing about it.

And this:

Air quality tests of 44 FEMA trailers conducted by the Sierra Club since April have found formaldehyde concentrations as high as 0.34 parts per million – a level nearly equal to what a professional embalmer would be exposed to on the job, according to one study of the chemical’s workplace effects.

And all but four of the trailers have tested higher than the 0.1 parts per million that the EPA considers to be an “elevated level” capable of causing watery eyes, burning in the eyes and throat, nausea, and respiratory distress in some people.
...
Despite the Sierra Club tests – and air quality testing by the Occupational Safety and Health Administration in November that detected formaldehyde levels at FEMA trailer holding stations on the Gulf Coast as high as 5.0 parts per million, or 50 times the EPA’s “elevated” level – FEMA says the trailers are safe and there is no need for it to conduct its own air-quality testing.

Heat and humidity can exacerbate the problem of formaldehyde fumes. Yesterday, the heat index in New Orleans was 108.