How? It is my understanding that eliminating oil imports entirely would reduce our trade deficit by only $229.2 billion, or 16% (using 2005 figures). Building nuclear power plants does not allow us to eliminate oil imports entirely, so your solution would reduce our trade deficit by much less than 16%, which would not be of an immense help.
all our power could eventually be suppled by nuclear, not only electrically, but nuclear could also distill hydrogen from the sea for gas and liquid power.
Nuclear could also give us unlimited power to desalinate ocean water, allowing more fresh water and more irrigation, power could synthesize fertilizer , and with the water, the desert could be turned into productive farm land, the possibles and the economics are endless, but just in my opinion of course!