I'm pretty pro nuclear energy, but it's pretty obvious why. Fukushima is still in recent memory. Proliferation concerns are pretty close to the forefront vis-a-vis Iran and North Korea. Solar and wind are quickly getting less expensive, and nuclear is (albeit slowly) becoming more expensive. This is all convincing many people that it just isn't worth the trouble.

I don't think those people are correct, but I do acknowledge that pro-nuclear folks have a bit of an uphill climb convincing them.