Originally Posted by
A and C
it should also be rmebered that Two TCAS equipped airlines collided over Switzerland a few years back.
Überlingen collision was due to pilot ignoring his TCAS and instead following instructions from an overworked ATC controller.
The unfortunate controller was later tracked down and stabbed to death by a parent of one of the Russian children on board. Stories don't get much more tragic than that.
If both pilots had followed their TCAS the accident would have been avoided.