graeme_p - 1:58 pm on Feb 21, 2012 (gmt 0)
IE is is a bit different. Google sends an unparseable (human readable, effectively blank as far as the the browser in concerned if it treats in in accordance with the standard) P3P policy. IE then allows cookies.
I think P3P does not really work. IE (by defaut) allows cookies if ANY P3P policy is present, but does not provide any way for humans to view these policies when deciding which sites to accept cookies from (and this seems to be how P3P is intended to be used).