www.twitter.com/jaketapper  (@jaketapper): Re US govt enabling of obesity, I refer u to "How to Get Fat Without Really Trying" by late great Peter Jennings > http://bit.ly/12vTgd

www.twitter.com/astro_tim( @astro_tim)  Tweets in space: an Army Astronaut will tweet from the heavens.  

www.twitter.com/charlesdaney  (@charlesdaney)  Grossed Out? You Might Be A Conservative! - http://bit.ly/hoXUJ 

See also: Twitter 101 for health care journalists. 

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