From the bottomless well of stupidity that is FEMA in the Bush years:

Same key could open many FEMA trailers

FEMA will replace locks on as many as 118,000 trailers used by Gulf Coast hurricane victims after discovering that the same key could open multiple mobile homes, the agency said Monday.

Some keys could open as many as 50 different locks -- causing a security risk in heavily populated trailer parks in Louisiana and Mississippi....

The snafu stems from a limited number of lock makers -- three -- that trailer manufacturers use when building mobile homes, FEMA officials said. That increases the likelihood of locks being the same, they said....

It does? Is making locks unique an as-yet-unsolved technical mystery, like curing the common cold? News to me.