I found the article on the poisoning death of a scientist's dog one of the most frightening things I have read in ages. ("Was poisoning of scientist's dog a warning from Humboldt pot growers?," May 10)
For decades, local, state and federal officials have seemed to turn a blind eye to the thriving and ever-more-powerful illegal marijuana cultivation business in Northern California. It was only a matter of time before Mexican or other international cartels became involved.
Huge swaths of back-country are implicitly off-limits to the public, where one risks a violent confrontation with growers. The intimidation and violence outlined in the article are just one example of the threat this "industry" poses to Californians.
It is time the authorities start to tackle this issue head on with all the state and federal forces available. I hope it's not too late.