Thanks for the link though. I had gotten a whiff, probably from statements like yours, that hushmail wasn't trustworthy, but hadn't known the source of this.
Your link, actually, is very enlightening. For those not willing to read it, it turns out that hushmail provides two services, their original one, and one that is geared for people not willing to install a java applet. The 2nd one can be exploited by hushmail to decrypt your messages, and hushmail can be compelled by law enforcement to do that exploitation.
However, if you use the java applet, you're golden.