Could we defend Earth against a 'rubble pile' asteroid? 

 Scientists have discovered that many asteroids have the consistency of piles of rubble. Knowing this, how could we defend Earth against one of these asteroids? 

https://cdn.mos.cms.futurecdn.net/ThWMPASDNMXYUdGid9AjSJ.jpg

https://www.space.com/asteroids-rubble-piles-earth-planetary-defense