Reddit reviews Field Manual FM 3-05.70 US Army Survival Guide
We found 2 Reddit comments about Field Manual FM 3-05.70 US Army Survival Guide. Here are the top ones, ranked by their Reddit score.
https://www.amazon.com/Field-Manual-3-05-70-Survival-Guide/dp/1537069969
I'm not sure that it's still classified by the fact that it's all over the web and in print from Amazon.
https://www.amazon.com/Field-Manual-3-05-70-Survival-Guide/dp/1537069969
https://duckduckgo.com/?q=FM+3-05.70&ia=web
That might make your question moot. But stealing classified information is still illegal. However if you're a "legitimate" news service you can, "in theory" publish even stolen classified information that you are given. It might be a good idea to have a lot of money to pay lawyers, though.
I'm not willing to go into politics on this sub, especially current politics, but the historical example was the "pentagon papers" and !w has a decent overview if you're unfamiliar with the case.