I didn't say that it doesn't still happen today. All I'm saying, is that it doesn't make much difference if the government directly poisons alcohol, or, if it poisons chemicals that it knows people are going to drink. At the end of the day, the people that die as a result don't care about the distinction.
What is the difference between directly killing someone and taking an action that you know will result in someone's death? The end result is exactly the same.