Fascinating.:
It's all the more fascinating considering a youtube video I watched about 10,000,000 degrees. That video said that if you heated 1 table spoon (or was it a gram?) of matter to 10,000,000 degrees and sustained it, it would kill everyone in a 1000 miles.
Unfortunately it didn't say how they would die but I have to assume it is the x-rays.
You were watching fearmongering doom porn.
You could have a bloody tablespoon of pure antimatter at 10 million degrees and it wouldn't kill everyone within 1000 miles.
What it would do is EXPLODE like a strategic nuclear warhead on an MX missile.