nookyular
When I say serious, I mean countries with proven nuclear capabilities. Not "limited war" with lesser proxy state dictator adversaries, already bludgeoned by economic sanctions.
And, when I say nuclear tipped warheads, I mean as many as it takes to kill the vessel. Any sane military strategist is going to hit, and hit, and hit, and hit, and hit, and hit, and hit, and hit, and hit, and hit, and hit, and hit, and hit, and hit, and hit, and hit, and hit, and hit, and hit, and hit, and hit the carrier either until it sinks or until everyone onboard and within ten miles is dead.
Even if it takes a solid month of nuclear attacks to starve the crew to death, and melt the deck into slag.
There aren't enough Nimitz class aircraft carriers in the world, NOT to use such tactics.
EDIT: reading the articles, no mention is made of nuclear tipped anti-ship missiles. Probably because it's the article wouldn't be worth writing, if they openly acknowledged that angle, and thus would not generate ad revenue.