Back in the '70's, there was a story spread by Art Linkletter and his ilk, that two students had taken LSD and stared at the sun until they went blind. This was just another example of "The Big Lie" which has been used consistantly by people for whom psychotropic mind-alteration is a contravention of their pre-conceived and easily-proven-to-be-irrational world-view. People like those, when consistantly unable to make the facts fit their theories, invent horror stories to convince their audience of the righteousness of their positions. Now don't get me wrong, I do not advocate drug use, other than medicinally , by anyone at any time - it is more often a distraction from facing life's problems than an aid in resolving them. On the other hand, I believe it is counter-productive to prevaricate in ANY instance, even when communicateing that truth might seem to be counter-productive to one's goals in the long run. You cannot empirically evaluate ANY theory by altering the facts! ("Ye shall know the Truth, and the Truth shall make you free.")
Both Art and Richard Nixon PROMISED me 'flashbacks'! They said that LSD would come back to plague those who imbibed for the rest of their lives - I WISH! I have NEVER had a flashback and never had a bad pysical or psychological experience from my previous use of etheogenic substances. But I am just one person and my experiences do not define the whole.
I have always believed that the means define the ends, and one cannot spread light while casting dark shadows upon any subject material. Unfortunately the whole repressive, fear-based climate with regard to the study of anecdotal psychopathology these days has become antithetical to true, empirical research into the nature of drug use, and abuse; and the powers-that-be have no interest in 'knowing the truth', even scientifically. If any studies show positive results that contradict current policy they are immediately excoriated as "wrong", and publically
obfuscated as such.
There is a reason for this, and that is that the "War On Drugs" has turned into a job-security-and-profit based, self-perpetuating assault on the Bill Of Rights, perpetrated by a criminal subculture consisting of high-ranking political and religious idealogues, compromised Federal agents, 'dirty' undercover drug cops and sociopathic rodential "Confidential Informants". Such is the sorry state of the republic's behavior modification gloss today.