Originally Posted by
exerda
The article is a bit confusing on several points. Did the pilots "ignore" ATC because they were following TCAS instructions?
There have been collisions before
due to pilots heeding ATC over TCAS--which is why they're trained to ignore ATC and do exactly what TCAS says.
TCAS will instruct a climb or decend movement, not a turn left/right instruction. Large aircraft are very sluggish in lateral movement while quite responsive to vertical changes.