Funny the Post didn't notice:
A huge mushroom cloud of dust is expected to rise over Nevada's desert in June when the Pentagon plans to detonate a gigantic 700-ton explosive -- the biggest open-air chemical blast ever at the Nevada Test Site -- as part of the research into developing weapons that can destroy deeply buried military targets, officials said yesterday.
Sure, it's not a nuke but the test is to determine what
a nuke would do. How do you know that? Show me the plane
that could get off the ground with a 700 ton bomb. You
would have to build the bomb in place over the target.
What they're doing is studying the effects of a huge blast,
one that couldn't come from a conventional bomb dropped
from the sky.
Me, I'm cautious about anything that would make the use
of nukes more likely.