[JoeFromSidney]

Nuking an asteroid without diverting it is a waste of time and nukes. The fragments will still dump as much energy into the atmosphere as would a hit by a solid asteroid. It's got to be diverted, not just blasted.

[Gadsden1st]

While I agree diversion is the best course of action, I can not believe “Nuking” the thing would not result in a least a portion of the fragments being diverted, a portion of the fragments reduced in size to burn up before impact, therefore worth the try.