Foreign Leaders and Visiting Ground Zero

So a friend of mine posted a video of Binyamin Netanyahu visiting the Ground Zero site in New York (he's in New York because of the Palestinian unilateral statehood resolution thing), and wondered what other world leaders have bothered to visit (a perfectly fair question).

Now, I remembered that Ahmadinejad was (understandably) prohibited from going to Ground Zero (understandable since Iran is a state sponsor of terror and Ahmadinejad has blamed the attacks on what he calls the "Zionist regime", sparking rebukes from everyone up to Al-Qaeda themselves).

However, I wasn't aware of which world leaders had visited. So I did some Googling.

• Gordon Brown (United Kingdom), 2006
• Queen Elizabeth II (United Kingdom), 2010
• Vladimir Putin (Russia), 2001
• Also soon after in 2001, Tony Blair (United Kingdom), Jacques Chirac (France) and then Mayor of Jerusalem Ehud Olmert see here in Google Newspaper archives), Jean Chretien (Canada)
• PM Junichiro Koizumi (Japan), 2004
• Victor Yanukovich (Ukraine), 2006
• Nelson Mandela, 2001
• Hu Jintao, 2002