St. Patrick's Day across the world

<div class="meta "><span class="caption-text ">President Barack Obama greets patrons outside The Dubliner Restaurant and Pub and Restaurant on St. Patrick&#39;s Day, Saturday, March 17, 2012, in Washington. &#40;AP Photo&#47;Carolyn Kaster&#41;</span></div>
March 18, 2012 5:53:41 AM PDT