May 23, 2012 (19 images)

Prince Charles arrives for his official welcome to Saskatchewan at the Legislative Assembly Building in Regina on May 23, 2012 during the third leg of the 2012 Royal Tour to Canada part of Queen Elizabeth's Diamond Jubilee celebrations. UPI Photo /Heinz Ruckemann

President Barack Obama shares a laugh with Norton A. Schwartz the Chief of Staff of the U.S. Air Force as Graduation Ceremonies get under way at the United States Air Force Academy on May 23, 2012 in Colorado Springs, Colorado. The Air Force Academy graduated 1074 cadets on Wednesday. UPI/Marc Piscotty.

Prince Charles and Camilla the Duchess of Cornwall leave the First Nations University in Regina, Saskatchewan on May 23, 2012 during the third leg of the 2012 Royal Tour to Canada part of Queen Elizabeth's Diamond Jubilee celebrations. UPI Photo /Heinz Ruckemann

New Jersey Devils Zach Parise reacts after scoring an empty net goal in the third period against the New York Rangers in game 5 of the Eastern Conference Finals of the Stanley Cup Playoffs at Madison Square Garden in New York City on May 23, 2012. The Devils defeated the Rangers 5-3 and lead the series 3-2. UPI/ John Angelillo