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2013/4/17 Steve Litt <slitt@troubleshooters.com>:


> Is there any way to protect every last bit of _ENV? If so, I could run
> the program and see every place where a global is being set.

Sure, see Programming in Lua by Roberto Ierusalimschy,

   13.4.4 – Tracking Table Accesses.

http://www.lua.org/pil/13.4.4.html