Most of us are hoping that any nuclear threats are just empty threats, and getting at the facts about ICBMs can be difficult. But what would actually happen if someone launched a nuclear weapon?

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Sources:

http://dailycaller.com/2017/02/14/pentagon-us-ready-to-blast-north-koreas-new-missile-out-of-the-sky/
https://fas.org/nuke/intro/missile/icbm.htm
http://www.businessinsider.com/north-korean-nuclear-strike-united-states-arrival-times-2017-8
http://science.howstuffworks.com/nuclear-bomb7.htm
http://science.howstuffworks.com/missile-defense1.htm
https://www.space.com/19601-how-intercontinental-ballistic-missiles-work-infographic.html
http://science.howstuffworks.com/difference-ballistic-cruise-missile.htm
https://www.nbcnews.com/news/world/u-s-spy-planes-watching-possible-north-korea-nuke-test-n749111
https://arstechnica.com/tech-policy/2014/07/how-us-satellites-pinpointed-source-of-missile-that-shot-down-airliner/
http://www.koreatimes.co.kr/www/news/nation/2016/11/205_217259.html
http://www.cnn.com/2017/02/14/politics/us-north-korea-aegis-ballistic-missile-defense/index.html
https://www3.epa.gov/radtown/fallout-nuclear-weapons-testing.html
http://spacenews.com/la%E2%80%82pleading-missile-warning-satellites-track-wildfires/
http://nationalinterest.org/blog/the-buzz/what-would-happen-if-north-korea-fired-nuclear-weapon-20205
https://www.quora.com/How-many-steps-are-required-to-arm-and-trigger-an-aircraft-fired-missile-and-what-safeguards-are-there-to-prevent-accidents
https://www.quora.com/What-would-happen-if-a-plane-carrying-a-nuclear-bomb-would-crash-e-g-by-being-shot-down-but-without-the-rocket-hitting-the-actual-bomb-Would-the-bomb-explode-by-the-force-of-the-collision
http://www.businessinsider.com/nuclear-bomb-accident-goldsboro-nc-swamp-2017-5
http://www.nytimes.com/1981/05/26/us/us-discloses-accidents-involving-nuclear-weapons.html
http://www.airspacemag.com/military-aviation/can-we-stop-a-nuke-16988105/
https://www.mda.mil/system/gmd.html
https://www.theatlantic.com/technology/archive/2017/01/north-korea-nuclear-missiles/512240/
https://www.theatlantic.com/magazine/archive/1988/04/the-rush-to-deploy-sdi/308326/
http://www.popsci.com/article/technology/could-lasers-be-future-anti-missile-weapons
http://breakingdefense.com/2014/05/the-limits-of-lasers-missile-defense-at-speed-of-light/
http://breakingdefense.com/2015/08/return-of-the-abl-missile-defense-agency-works-on-laser-drone/

Images:

https://commons.wikimedia.org/wiki/File:Dauntless_bomb_drop.jpg
https://en.wikipedia.org/wiki/File:Trident_II_missile_image.jpg
https://en.wikipedia.org/wiki/File:Tomahawk_Block_IV_cruise_missile.jpg
https://commons.wikimedia.org/wiki/File:Goldsboro_Mk_39_Bomb_1-close-up.jpeg
https://commons.wikimedia.org/wiki/File:%E3%81%9D%E3%81%86%E3%82%8A%E3%82%85%E3%81%86%E5%9E%8B%E6%BD%9C%E6%B0%B4%E8%89%A6.jpg
https://en.wikipedia.org/wiki/File:YAL-1A_Airborne_Laser_unstowed_crop.jpg
https://en.wikipedia.org/wiki/File:Military_laser_experiment.jpg