People who are frequently defying the US do not really take in to account the ability of this country to overcome adversities. Chavez is about to nationalize US companies. I hope him and his people understand clearly that no one can intimidate the united states.
Nationalizing foreign companies can lead to a very destructive war. We still remember France ,UK and Isreal planned to attack Nasser who nationalized the canal of Suez.The plan collapsed when the soviet Union backed Egypt.
You don't take action just because you are mad at somebody.