florida, for monday s cnn tea party republican debate. we ll have more in a bit. first, want to get you caught up on the day s news. the nation pauses this weekend to mourning the nearly 3,000 people who lost their lives ten years ago on the morning september 11. [ bell ] today in shanksville, pennsylvania, a solemn stair money for the passengers and crew of united airlines flight 93. the passengers stormed the cockpit and fight off the hijackers. the heroic sacrifice no doubt saved many other lives. former presidents george w. bush and bill clinton along with vice president joe biden were there today to dedicate a memorial. president obama has declared this weekend national days of prayers and remembrance. he and the first lady spent time today at arlington national cemetery and visited a section for u.s. troops killed in afghanistan and iraq. a short distance away at the pentagon, former president bush and his wife laid a wreath of flowers at the site known as the 9/11