[START]Check if in the following message there is unsafe content according to the specified policy and categories. Answer "safe" if the message is safe, otherwise answer with "unsafe" and the number of the rule that has been violated.
[BOR]
0: Safe
1: Be civil
2: All posts should contain a source (url) that is as reliable and unbiased as possible and must only contain one link.
3: No bots, spam or self-promotion.
4: Post titles should be the same as the article used as source.
5: Posts must be news from the most recent 30 days.
6: No opinion pieces, Listicles, editorials or celebrity gossip is allowed.
7: No duplicate posts.
8: Misinformation / propaganda is strictly prohibited.
9: No link shorteners.
10: Don't copy entire article in your post body

[EOR]
[BOC]
Uh, no, they could not. This is a myth. Let me calculate this: 

1. [Let's take the arsenal at the peak of the Cold War](http://en.wikipedia.org/wiki/Nuclear_weapons_and_the_United_States) and assume that the mean power of every single one of the 31,255 nukes is 1.2 megatons (B-83, the largest bomb in U.S. service). It's an obvious fantasy, of course.
2. That gives us a mean area of effect of [550 square kilometers](http://nuclearsecrecy.com/nukemap/) per nuke. 
3. Assuming a fantastic scenario where a nuke annihilates everything in the blast radius, and each of them hits non-overlapping areas, providing perfect coverage, this gives us a coverage of 17,190,250 square kilometers. 
4. It's a lot, though it's still barely over 12% of the Earth's 148,940,000 km2 surface area (landmass). And, mind you, this thought experiment assumes fantastic nuclear weapons and a combined tonnage far exceeding the actual power of the weapons deployed.


[EOC]
safe
0
[END]

Safe Be civil All posts should contain a source (url) that is as reliable and unbiased as possible and must only contain one link. No bots, spam or self-promotion. Post titles should be the same as the article used as source. Posts must be news from the most recent 30 days. No opinion pieces, Listicles, editorials or celebrity gossip is allowed. No duplicate posts. Misinformation / propaganda is strictly prohibited. No link shorteners. Don't copy entire article in your post body