Well I've done some research, as I wasn't running marathons, nor involved with TNT back in 2005 when the MCM cheating occurred, and I cannot find any evidence regarding TNT being implicated in the cheating scandal (mainly becuase the team that was implicated was banned the following year, and TNT was not). There is a lot of people who associate TNT with the cheating but no clear evidence that they did, since a punishment was not handed out...
That being said, I'm not going to defend anyone who cheats in a marathon, regardless of their affiliation.
Unfortunately, a good organization gets a bad reputation due to a few individuals who don't want to follow the rules or ettiquite of a race.
It's obvious and unfortunate that we will never see eye to eye on this issue, because somewhere some individual (or a very small group of individuals) in a purple shirt did something to make you notice them, and that soured you on what is really a great organization.
I'm not so blind to say that those incidents don't happen, but they are exceptions and not the norm. Unfortunately, there are some individuals/coaches/chapters that may think they are "above" the rules of the race because they are running for a charity, and that is definitely not the case
JOHN