Originally Posted by
photonclock
These aircraft crashed, as per the system specifications.
So the system is, to put it plainly...FUBAR?
That's not good.
See and avoid will always eventually produce midair collisions because physics, geometry, and humans don't permit see and avoid to work flawlessly.
This incident follows the same script as decades of others where ATC verifies that a pilot has the (incorrect) traffic in sight and shortly afterward there is a midair.