Germ

If you breathe it will find you.

The germ--a form of the Ebola virus--has been genetically engineered to infect only those people whose DNA matches the codes embedded within it. Its release will usher in an era where countries are left without defense. Where a single person--or millions--could be killed with perfect accuracy and zero collateral damage. Where your own DNA works against you.

The time isn't coming. It is now. Pray the assassins get you first.