So I linked to weusecoins.com from Facebook and this is what popped out:
To a normal person (i.e. not a Bitcoin nerd) this is not going to make any sense at all and might actually be harmful to our goals. Using the word "government" and "military" probably doesn't send a good signal! Furthermore, normal people don't know anything about encryption. They use insecure passwords and trust central authorities with their personal information. Touting Bitcoin's mathematical properties will likely elicit yawns and drooling.
Consider instead:
"Bitcoin is digital money!"Well I'm no copywriter but you get the gist.