Bullet Proof Vests Made From Silk

This almost reads like an April Fool Joke (remember San Serif?) but a quick check on the date proves that this is definitely not the case.

Apparently if Franz Ferdinand had been wearing his bullet-proof vest then he might have survived the assassination attempt - and the whole of 20th (and 21st) Century history would have been different:

http://www.theguardian.com/artanddesign/2014/jul/29/bulletproof-silk-vest-prevent-first-world-war-royal-armouries