India is a nuclear power that hasn't signed the NPT, but the US is fine with investing $14 billion in new Indian reactors and nuclear plants over the next year alone.
Iran has signed the NPT, but the US wants to ban it from even having civilian nuclear power. Iran says it "could reconsider its uranium enrichment program if it gets cast-iron guarantees of regular international fuel supplies for its nuclear power plants," but I doubt the US will play ball.
Pakistan hasn't signed the NPT, wants a US nuclear investment deal despite being part of a shadowy network of nuclear technology trafficking, yet, they remain a key ally in the war on terror, with lawless regions along the border with Afghanistan.
My head hurts.