A single nuclear weapon could destroy America’s entire electrical grid, claims a former head of the CIA. The explosion would send out an electromagnetic pulse – resulting in famine, societal collapse and what one newspaper has called a “Dark Apocalypse”. But are hungry squirrels a greater threat to the electrical grid than North Korean weapons?

A group of anonymous keyboard warriors who claim they helped Donald Trump win his presidency in the “Great Meme War” have moved their fight to Europe and are trying to help elect a right wing leader for France. Conversations in secret online messaging forums reveal a systematic effort to sway opinion but is it working?

Also, the power of applause and why we humans like to clap.

(Photo: The launch of a surface-to-surface medium long-range ballistic missile Pukguksong-2 Credit: Getty Images)