Hi Len,

I would agree (this has also been a fun thread):

a) Universal (or close to universal) use of AIS would be the best
solution.

b) Radio contact is a close second if it can be established in time and
everyone involved can figure out who is who.

c) Good radar watches should not be assumed on either offshore yachts
or commercial ships (Naval vessels are another matter) -- how much
money you want to throw at the problem -- for radar reflectors, alarms,
or extra watch-keeping crew -- is a captain's decision that probably
has something to do with a memory of a close call on a foggy night.

Carl