There are many rumours going around saying that D-Day commemorative events are being cancelled, blocked off from the general public etc. due to the President’s visiting Normandy D-Day sites in June 2009.
The only places he is expected to visit – and hence to be seriously affected by major security measures – are the American Cemetery and Colleville Beach on 6th June.
As far as I can ascertain, the American cemetery will be open to visitors as usual before and after his visit on 6th June BUT YOU WILL NEED A SECURITY PASS, OBTAINED IN ADVANCE, IF YOU WANT TO VISIT THESE SITES ON 6TH JUNE.
There is an article (in French) from the regional newspaper reproduced online here: Journal Ouest France .
So basically, the current situation is that Obama is likely to visit the US cemetery and the landing beach at Colleville on June 6th 2009 and access to these will be severely restricted.
No other events have been confirmed as part of President Obama’s visit.