How is this news?

Temporary files on an unencrypted partition could reveal document contents? How is this news? It's true of most things that aren't programmed with security in mind, anyway.

Anybody with the brains to use Truecrypt knows this already. And if you encrypt the ENTIRE machine, like you're supposed to for best security, it's not a problem. News would be that the new version of Truecrypt allows for multiple OS's to be installed, one of which is used to "decoy" people who want to look at your PC, one of which stayed hidden and encrypted unless you know the password. But if you were stupid enough to access files from the latter from inside the former, then there would be leakage just the same.

My favourite newspaper is The Metro (London edition). They have a "No s*!# Sherlock" column. This belongs in their next issue.