http://www.cracked.com/article_24146_6-disasters-with-details-so-awful-history-left-them-out.html
Hats off to Adam for another great article.
The Challenger entry still infuriates me to this day. The details of that cover-up are sickening.
Even more interesting is that in documentaries on NASA (thinking of When We Left Earth ), when the Challenger disaster comes up, guys like Gene Kranz (Flight Director) and Story Musgrave (multiple STS mission commander) get pissed about it - because people they knew and admired were killed by negligence and then disrespected further by the NASA brass covering it up.