I should point out that if people want to go to Blue Harbor, but do not want to fight Meltdown, there are people to save and reactors to prevent from going critical.  Someone asked me the extent of damage, so I'll elaborate: sections of the plant have collapsed so some people are buried under rubble with rescue efforts trying to save them, the reactors might go critical, Meltdown has been releasing a lot of infra-red, so the path away from the plant is mildly scorched with dried grass and partially burnt trees.  Meltdown is an overhuman who can release radiation, basically alpha particles, beta particles, gamma rays (EM waves) and neutrons.  Even though Meltdown is a source of radiation, he is not a source of 'fallout', he does not contaminate the environment by his mere presence.

I'm lagging a little behind on filling out the rest of the other 'Big Six' characters.  I'll let a few more players post before I have Meltdown react to being confronted.