http://video.google.com/videoplay?docid=8167533318153586646&q=&hl=en
Also see this Web site:
http://www.fightthefeds.com/shtml/tab20.shtml
Mark Bennett, criminal defense lawyer
Member, National Association of Criminal Defense Lawyers
"Million Dollar Legal Advice
The following advice is worth millions of dollars, countless years in
prison, and many saved lives. I give you this advice for free:
Don't talk to government agents.
...
When the police want to talk to you, it's not for your own good.
They're not looking for evidence to clear you. They're looking for
evidence against you. They're looking to twist whatever you say --
true or false -- against you.
You have a constitutional right not to talk to the police. That means
that your refusal to talk can't be used against you. If you keep your
mouth shut, nobody will legally be able to consider that in deciding
whether you're guilty or not."