"It is unusual to hold election rallies abroad. No German candidate for high office would even think of using the National Mall (in Washington) or Red Square in Moscow for a rally because it would not be seen as appropriate." - German Chancellor Angela Merkel, commenting on the request by Barak Obama to hold a rally at the Brandenberg Gate.
The Brandenberg Gate is a powerful symbol of German unity. Reagan and Kennedy both spoke there, both on memorable occasions - and that does NOT include a campaign stop for someone who isn't even the official nominee of his own party yet.
UPDATE: July 12, 2008. Obama is now saying "We had been trying to coordinate with folks on the ground in terms of finding an appropriate site, but we didn't have a particular site in mind."
What a liar.