I keep finding the same news articles over and over, with the same unsubstantiated reports. It's a little frustrating

This is an excellent discussion of why, even in the event of total meltdown at all the affected reactors, we aren't facing anything like Chernobyl: https://morgsatlarge.wordpress.com/2011/03/13/why-i-am-not-worried-about-japans-nuclear-reactors/