When called on it, they then claimed that these new recommendations to "avoid the chest" were strictly intended "to avoid the controversy" about if tasers do or don't affect the heart. It would not be unreasonable to view their clarification about the intent of the new Targeting Guidelines as a bald-face deception.
Fast forward to 1 May 2010:
"When possible avoiding chest shots with ECDs reduces the risk of affecting the heart and avoids the controversy about whether ECDs do or do not affect the human heart."
See what they've done? They've added in (the red text) EXACTLY what they had previously denied was a reason.
Keep your eye on them. They're micro-stepping, in the tiniest possible quanta of changes (probably according to a carefully-planned long-term schedule), from the previous position that Tasers-R-safe to their new position that "Hey! We TOLD you that these damn things are potentially deadly! You should be careful!"
I've noticed it before; see [LINK].
And I know why they're doing it; see [LINK].