Dutch terror suspects not the sharpest tools in the shed

There's a follow-up piece on expatica.com about the terror suspects now on trial in the Netherlands. It seems two of the suspects traveled to Germany to acquire materials for a suicide bomb belt:

Crown witness Lahbib B. — who also stands accused in the Piranha investigation — said Samir A. asked him in the summer of 2005 — shortly after the arrest of El F. — to travel to Germany with him.

He said A. wanted to see how many checks were carried out along the border. B. said further that Samir A. wanted to obtain the "ingredients of a bomb belt" in Germany.

I drove from Amsterdam to Duesseldorf last year. You cross from Holland into Germany and don't even know it until you notice the difference in the road signs.