FAS Intelligence Resource Program

The Intelligence Resource Program from the website of the Federation of American Scientists is a lovely nugget of information about the intelligence field. It has intelligence budget data, threat assessments, imagery information, and more. But, in a little-known unlisted directory you can find intelligence and security related .pdf manuals for all four combat branches of the DOD and even a few others. Check it out, and don't worry because everything there is technically unclassified, it's just hard to find. [from MetaFilter.com]