How To Prevent Destruction of Earth due to Asteroid Impact

1. Amass an arsenal of nuclear weapons
2. Locate and employ Bruce Willis and his rag-tag band of gung-ho, oil-drilling roughnecks
3. Provide said band of roughnecks with said arsenal of nuclear weapons
4. Supply rag-tag crew with space craft with which to deliver 'Hand of God' (nuclear payload) to offending asteroid
5. Instruct roughnecks to poke hole in asteroid with 'Finger of God' (drilling equipment) and to place nuclear payload into the hole
6. The roughnecks are then to detonate the nuclear payload while making a daring last minute getaway from the asteroid
7. All of the above is to be done while churning out witty one-liners at at great personal sacrifice in order to achieve maximum dramatic effect
8. The final stage of this preventative measure involves chugging a cigar in a control room full of clapping and cheering operators while announcing "Well if the good ol' U.S. of A. ain't just the greatest damn nation on God's green Earth!"
9. The destruction of Earth will now have been successfully prevented.