On August 1, 2005, Palmeiro was suspended for ten days after testing positive for a steroid.  The Washington Post reported that the steroid detected in Palmeiro's system was a "serious" one.  According to The New York Times , Palmeiro tested positive for the potent anabolic steroid stanozolol .  In a public statement, Palmeiro disclosed that an appeal of the suspension had already been denied. He released a statement saying, "I have never intentionally used steroids. Never. Ever. Period. Ultimately, although I never intentionally put a banned substance into my body, the independent arbitrator ruled that I had to be suspended under the terms of the program."  According to Palmeiro, all of his previous tests over the two years including the 2003 sealed test were negative, and a test he took just three weeks after his positive test was also negative.  The House Government Reform Committee would not seek perjury charges against Palmeiro, although they were not clearing him. 
Which made Canseco’s second benefactor — Mike Wallace — all the more important. John Hamlin, a producer at 60 Minutes , had gotten a tip about Canseco’s book from a friend at another network. (The friend couldn’t act on it because his employer was a Major League Baseball rights holder.) Hamlin began calling baseball people and confirming the details. Almost no one would talk on the record, but they suggested that Canseco’s account was true. One of the few allegations Hamlin couldn’t verify was Canseco’s insistence that Roger Clemens was juicing.