The US will not nuke Mecca. Now Iran's and N Korea's nuclear program is on the table for sure.
North Korea is the more dangerous of the two. I hate the fact that we can't touch it just because China is right on their backyard. They have missiles aimed at Alaska, Guam and possibly the Pacific NW.
I don't think anyone suggested the US was planning to nuke Mecca. I for one have no knowledge of such plans. But the idea behind the article makes sense. I don't think it's very different from various Cold War tactics.