Yes, Nimitz is a security concern...jihadi attack on a nuclear powered warship can result in a radiation attack in Chennai. This is a real, horrible danger in the short term...and, in the long term, there is an even more horrible danger...today, the US is the most dangerous country in the world..letting them in is going to enable them to know our territory much better, and this will increase their stranglehold on India in future...anytime in the future, if the US is displeased by India, it will declare a war on India and kill millions of civilians...and knowledge gained during trips like these will make it easier for them to carry out their dangerous operations in India, anytime they wish...KEEP THE DEVIL OUT...But, Sonia, being a Westerner, is more inclined to the US and so is prepared to mortgage India to any Western nation, including the US, the most powerful and the most dangerous of them all...
