The Seal of the Confessional

I was wondering to myself today about the Seal of the Confessional when it comes to revelation of a threat to someone's life, ongoing abuse, etc...

I found my answer on the Catholic Educator's Resource Website (great website with lots of useful articles).

Conclusion: no ifs ands or buts about it - the Seal of the Confessional is absolute and binding regardless of the content of the confession.

The article I read, by Fr. William Suanders, points out that a priest cannot break the Seal of the Confessional even if put under oath in a Court of Law. Now, my question is therefore, what would they do? Can they refuse to testify in a trial? Can they refuse to answer questions? Would the judicial system put a priest in jail if he refused to break the Seal of the Confessional? Our courts don't really seem to care much for God's laws these days anyways...