A man pleaded guilty on all six counts of conspiracy to engage in terrorism in an American court today.

Zacarias Moussaoui was convicted of being involved in the terrorism on Sept 11 2001 when two planes crashing into the World Trade Centre in New York. He is proclaiming his innocence in this event, saying he was not actively engaged in this one but in other plots not yet executed.

But another problem that may arise is that there is a debate over whether American civil courts can effectively prosecute terrorists because of the numerous rights it grants its defendants.  There is also the problem of national security if these people are prosecuted in an open court.