From AvWeb this morning, in an article which states that all aircraft in controlled US airspace must have ADS-B fitted by 2020 :-
"In Southwest Alaska, the fatal accident rate for ADS-B-equipped aircraft has dropped by 47 percent, the FAA said."
Impressive stat, although we all know about stats (especially ones from the "lying Scotsman" in No. 10 ...

).
Has anyone seen anything to suggest that mode S will deliver safety improvements anywhere near this ? If not, shouldn't someone in CAA/EASA/etc be getting poked with a very sharp stick and asked why they're not going down this road as well ?
FF