Just to add a comment about the PR photos..it was also 'revealed' post war that due to the code breakers at Bletchley Park that it was known that elements of the 9th and 10th SS Divisons were refitting in the Arnhem area....however it is now well known that many commanders took a risk going to Arnhem because the High Command and Browning wanted to do something with the 1st Allied Airborne Army before the war finished...which given the rapid advance in August 1944 looked like it might have been Christmas...