http://www.zoeharcombe.com/2012/03/red-meat-mortality-the-usual-bad-science/
The alleged harmful effects of red meat appear to be due to the healthy user effect, that is, those who ate less meat were following conventional dietary advice and were more likely to follow others, such as not smoking, getting exercise, and maintaining a normal weight.
Update: A few more:
http://www.marksdailyapple.com/will-eating-red-meat-kill-you/#axzz1p7JW6boT
http://www.robbwolf.com/2012/03/14/red-meat-part-healthy-diet/