[FDE] Should Boucher be forced to handover the password toencrypted data?

[Simson Garfinkel]

Actually, refusing to testify against yourself in US courts can be  
contempt of court. There are at least two conditions I am aware of:

1 - When you have already started testifying, you cannot stop. You  
have waived your right to self incrimination.

2 - If you have been granted immunity from prosecution (for example,  
by Congress), you do not have the right to remain silent.

3 - You have no right to silence in a civil trial.

I'm not a layer, so I could have the details wrong here.