Why the United States is lagging behind schedule, which has pledged to destroy the old nuclear weapons? One of the reasons - they may need to defend our planet from asteroids.
Auditors in the response of the United States Government Accountability Office explains that the old nuclear warheads may require protecting the Earth from asteroids.
The Wall Street Journal notes that this is not necessarily issued by the scientists worried about an asteroid crashed into the planet - they do not expect to at least the next century.
However, since last year in Russia, Chelyabinsk, fell about 20 meters in diameter meteorite, scientists have increasingly been taking care of, and how to protect themselves from the risk of smaller asteroids. They follow their trajectories and develop strategies on how they can be destroyed.
Some scientists believe that the best way - a nuclear explosion in space.
The following scene in the story of how nuclear power can be used to destroy the Earth dangerous cosmic bodies:
