I'm sorry...but what are you talking about?
Where did the moon-apocalypse come from?
A lot of the things you said about what would happen if the moon hit the Earth are a bit....not entirely correct. Friction wouldn't cause a "shock wave", it wouldn't be the same as 10,000 ICBM's -- it would be much more (minus the EMP's), it wouldn't melt the Earth's surface -- but probably expose part of it. This would rapidly cool, however many toxic gases would mix in the air.
If the moon for some strange and off reason the Earth pulled in the moon (which is highly improbable unless Earth magically gained more density, which would crush us to begin with), it would stir up such a mass of dirt, gasses and other toxic substances in the air. This would essentially "blanket the Earth" which would:
A. Cause mass respiratory problems. (for anyone actually surviving such an event)
B. Block out the sun, killing all natural life.
C. Cause an extreme buildup of Greenhouse Gases, sending the Earth into another Ice Age.
And tons more. But that's only if anyone even survives impact.
Also -- about JFK's assassination. His face didn't get "blown off", hahahah. The bullet entered the frontal portion of his skull. As the bullet exited, a large portion of the Parietal and Occipital lobes of the skull were "blown off". Jacqueline Kennedy can then be seen grasping her husband's head -- even though it was too late. So really, his face was intact. It was the opposite side of the skull that was blown off. You can still see the JFK autopsy photos on the internet. However,
I explicitly tell everyone under the age of 17 to not go looking. It's awfully bloody and without the proper insight, it could be mentally disturbing.
Anyways...where did this whole moon-hitting the Earth thing come from? And where did the JFK thing come from?