I know she has shown extreme indifference with respect to securing classified documents by illegally using the private server.
But I don't recall what classified info she revealed last night, even though I heard the whole debate. Can you possibly be a little more specific as to what was revealed last night?
nuclear launch time
I don't think so. That would then reveal classified information as well.
Classified information is still classified, even if someone else reveals it first. It's only unclassified after an authorized declassifier unclassifies it.
And this is not the first time Hillary has betrayed the U.S. by revealing classified information. Read the article, "Clinton emailed classified information after leaving State Dept.." Hillary is a regular Joe Biden in the classified blabbing department.