Within the context of professional journalism, which of these actions is the most offensive?

	1. Anderson Cooper's 'tea bagging' moment on ­CNN.
	2. Politico's Jonathan Martin's use of the wo­rd 'cracker' on MSNBC.
	3. Roland Martin's Super Bowl tweets.
	4. Media Watchdogs Erik Wemple & Dylan Byers ­pressuring CNN to punish Roland Martin.