I should have been more clear. Both cases took place in the UK. However, all challenges to the UK law have failed on grounds of the "greater public good." But, I wouldn't advise standing on the Fifth Amendment. The courts in this country obviously have no regard for that particular piece of the Bill of Rights. Remember Kelo? Is it so hard to imagine the courts here making a similar ruling in the name of "Homeland Security?"
I should have been more clear. Both cases took place in the UK. Ohhhhhhhhhhhhhhhhh! Well, that's diff'rent!
I wouldn't advise standing on the Fifth Amendment.
Please consult a lawyer on this. I did. The State cannot compel you to testify against yourself. If anyone ordered me to do as much, I'd go Federal on 'em.
As for Kelo, I wish I knew what the hell the Supremes were thinking when they handed down that abomination...it's just a frickin' mystery.