Would some of you get real.
Mode A, C, or S will not totally prevent mid airs.
Suddenly 50odd tons of airliner is cranking round a steep (for us) turn with people falling over in the cabin and two pilots scrunching their faces up expecting a loud bang.
Come on WWW, how often does this really happen.
VFR means look out the window.
Last night I had a close encounter with a large sea bird we both took avoiding action because we both were looking, so is it mode S for seaguls etc.
Tony