Opened up the links and scrolled through many of them. There are some good observations and a few first hand accounts.
When I opened the first link Matt Giusto and Balco popped up, I'm assuming the post was insinuating that Brooks was incorporating and or giving steroids via Balco to Giusto while he trained with Brooks' group at Stanford. If anyone has met Matt Giusto (aka- "Juice"...no pun intended) and have actually asked him about his involvement with Balco he will openly and freely discuss it with you (preferably over a cold beer or Tequila shot).....I did both! He will quickly reference the NPR interview he did which details his involvement with Victor Conte and Balco. Matt had started working with Victor Conte just before his senior track season at San Mateo High (after he won Kinney X-C Nationals!). He continued to work with him and Balco on and off through the 80's and 90's. Matt jokes about how there were two doors in the Balco lab, one locked and one unlocked. He went through the "Unlocked Door" where there were shelves full of bottles containing minerals and vitamins. After thorough testing of his blood, urine, and hair Matt was prescribed a daily treatment (3 x daily) of Iron, Ascorbic Acid, Chromium, Copper, Brewers Yeast, Magnesium, and Zinc. Nothing more, Nothing less. That's it! These minerals and ONLY minerals were prescribed to him based on his test results. The "Locked Door", he jokes was a door he never had a key to. "This is the door that only Marion Jones, Barry Bonds, Tim Montgomery, and Regina Jacobs had keys to I guess". Obviously Matt was referring to the steroid or "The Clear" room. Giusto was not involved with Victor or Balco after 1995 and definitely not in 2001 or after when the Balco investigation began with Marion Jones et al... Matt's simple response to Victor becoming embroiled and guilty in one of the largest steroid busts ever is simply...."Looks like Victor went to the dark side.....I'm glad I was never there or invited".
Sorry for the long response but I had to stand up for Matt and the person he was and is. I never met him before that night in Tucson, Arizona and was a fan of his since his days at Arizona. I introduced myself and we began talking about running. After a few beers and shots (Tequila) I asked the "Juice" what was the deal with Balco?...Did you really cheat? and the story above was his answer.
Matt lives outside San Francisco, CA (Danville) with his wife and 5 kids. He's a successful businessman in the organic commodities industry and does private consultation for running technique and speed development for high school and collegiate athletes.
With regard to Brooks Johnson, Matt spoke very highly of him. He said Brooks' knowledge of track was amazing and that he was a fantastic motivator that taught athletes to believe in themselves.