Whoops. An auditor for the DEA has lost his laptop with data concerning over 100 informants, including over 4,000 pages of sensitive case-file information that if delivered into the wrong hands could allow traffickers to identify the informants. The loss story sounds fishy, because first the auditor told the DEA the laptop was stolen from his car trunk while he was inside a coffeehouse, but later,

...when investigators confronted the auditor last week and questioned his account, the auditor changed his story, saying he had accidentally damaged the computer—then destroyed it and threw it away in a Dumpster to avoid embarrassment.

The DEA is reportedly "livid." Aside from the obvious reason, here's another one:

Only two years ago, the [Inspector General] IG issued a blistering report criticizing Justice agencies, including the DEA and the FBI, for failure to maintain adequate controls on sensitive items—including their laptop computers.