Security heightened after killing of high-ranking al-Qaida leader
After a weekend airstrike by U.S. forces killed high-ranking al-Qaida leader Anwar al-Awlaki in Yemen, security is being heightened.
A greater police presence can be seen at area rail and subways stations, bridges and tunnels as well as at Yankees games.
The U.S. State Department has also issued a travel warning for all Americans abroad in case groups attempt to avenge the deaths of al-Awlaki and others killed.
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