Re: "Cannabis prohibition does more harm than good," by Cecily Friday Shamim, and "Patients deserve access to medical marijuana," by Allison Barker Watson, Sunday Insight, March 27.

Please be more objective and honest in your selection of guest editorial writers than your March 27 "Point/Counterpoint," which contained two letters from pot lobbyists who used emotion rather than science to encourage our society toward addiction and brain damage.

Google: "Harvard Pot Study" to learn of the long-term damage in casual pot users to "...the nucleus accumbens and the amygdala - key regions for emotion and motivation, and associated with addiction."

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Re: "Pot battle gears back up in California," Oct.12.

In all of the thrilling excitement of marijuana legalization, no one has had the integrity recently to mention the Northwestern Medicine/Massachusetts General Hospital/Harvard Medical School series of studies of 2012, 2013 and 2014 which prove that "casual use of marijuana is related to major brain changes."

For previous pot users, "memory-related structures in their brains appeared to shrink and collapse inward," even two years after quitting pot.

The study also linked pot abuse to schizophrenia development.

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