It is not a question of doing business. It is a question of STRATEGIC DEPENDENCE.
Suppose we purhase 10 reactors of 1 giga watts each based on US technology. The US and China arms Pakistan which attacks us. We retaliate. The americans stop giving us N-Fuel and cripple our energy sources and 10% of our electricity generation is stopped.
Don't think that this is a hypothectical situation. We paid good money for the Bofors guns - but when the Kargill war happened - the Swedes actually refused to give us the spares!!
Use logic and experience from the past. Do not fall for propaganda.