In addition to what the person above stated about the period of time over which this occurred, I'd like to add that I would think the "don't believe everything you read on the internet" file would be filled with statements of the kind made by disreputable sources. This article concerns research done since at least 2015 which has led to an investigation from the Department of Defense. I don't think it should be taken so lightly, yet your comment seems to be trying to sweep this issue under the rug.