<p><br /> Barack Obama was addressing a gathering of prominent women when the presidential seal fell off the front of his lectern.<br /> </p><p><br /> "That's all right. All of you know who I am," the US President joked, looking over the lectern at the fallen seal.<br /> </p><p><br /> "But I'm sure there's somebody back there that's really nervous right now. Don't you think? They're sweating bullets back there right now."<br /> </p><p><br /> Mr Obama was attending Fortune Magazine's "Most Powerful Women" summit in Washington, DC.<br /> </p>
