Overuse of bullet-proof glass

Incidence 
The introduction of bullet-proof glass over valuable paintings in recent years has drawn fierce objection from art lovers and museum visitors, who say it interfered with the experience.
Counter-claim 
But for protective glass, many of the masterpieces in the Uffizi bombing would have been cut to pieces.
Aggravated by 
Strategy(ies) 
Value(s) 
Type 
(F) Fuzzy exceptional problems