Secretary of Defense Leon Panetta has approved a request to increase force protection on U.S. based military installations in preparation for the 10th anniversary of 9/11, Pentagon Press Secretary George Little announced Wednesday. 

In addition, Fox News has obtained an internal document sent from Northern Command with instructions for all military bases operate under security level ALPHA through Sept. 11.

ALPHA is only one step up from a normal or standard security status.  It increases in order from NORMAL to ALPHA, to BRAVO to CHARLIE.  CHARLIE would be established if intelligence shows and imminent threat.  DELTA is the highest level and would be declared when an actual attack is occurring.

Little said this increase in security is not in response to any "specific or credible threat," rather simply "prudent and precautionary planning."  Although he reminded us that there were documents found at Bin Laden Abbottabad compound that mentioned aspirations to strike on the 10th anniversary of 9/11. (read more)