| CNN.com delivers up-to-the-minute news and information on the latest top stories, weather, entertainment, politics and more. | U.S. beefs up security | | U.S. authorities are tightening up domestic security measures ahead of a possible U.S. military attack on Syria. |
| What's in Syria's arsenal to retaliate? | | As the United States and its allies debate military intervention in Syria, the nation's president, Bashar al-Assad, has warned that Syria will "defend itself against any aggression." |
| At stake for Iran | | CNN's Reza Sayah reports there appears to be a debate in Tehran over how to respond to an American attack against Syria. |
| Nyad tries Cuba-Florida swim again | | If Diana Nyad never realizes her dream of swimming the Florida straits, it won't be for lack of trying. The 64-year-old says she will begin her fifth and last bid to swim from Cuba to the United States early Saturday. |
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