CNN was saying the explosion was near the plant, not at the reactor. An explosion in/of the reactor is such an incredibly remote possibility that it's hardly worth even thinking about. Chernobyl was a horribly designed plant that wasn't maintained properly and run by people who made mistake after mistake reacting to the situation. This is a modern plant that, in the case of a meltdown, should be almost completely self-containing. Freaking out about the plant isn't called for at all.
*edit* Look at what happened when Three Mile Island melted down... external to the plant, nothing. TMI is still running the other reactor at the plant. No one was hurt. All that happened was it ruined that one reactor and showed that the safety systems worked, but everyone freaked out anyway. I suppose it's possible that this event could be a bit worse than that in a worst case scenario, but that's considering the plant got nailed with a freakishly nasty series of earthquakes and a massive tsunami. It's still, in the worst case scenario, not going to come anywhere near the events of Chernobyl.
I never invoked Chernobyl, so why are you arguing that with me? I'm well aware of the deficiencies of Chernobyl, namely the utter lack of a containment facility. And a building housing a reactor DID explode.
Listen, I'm a fan of nuclear power...however, I am NOT a fan of governmental disinformation during a crisis, and that's what the Japanese have been doing this whole time, as has been reported on every major news network. "Oh, everything's fine, minor damage, backup systems are working as designed" turns into "primary backup systems have failed, but the secondary backups are working as designed," which then becomes "we ran out of batteries, but everything's fine because we have a team of scientists and experts flying in to assist and worse-case scenario is that a little radiation leaks, but no explosion is possible." soon followed by an explosion.
Sorry, but depending on how this $h! blows across the ocean, I'm in the line of fire for radiation exposure. I want to know what is actually happening so I can prepare accordingly to protect myself. And I certainly don't trust the US government to tell me the truth, either.