Obama to appear on Colbert show

Obama to appear on Colbert show
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The president taped a skit with the late-night comic in Pittsburgh on Thursday after he attended a science and technology conference at Carnegie Mellon University. 
 
Obama even dropped a hint about the sketch before it was announced while lamenting how the "wild, wild west" media environment makes it hard to get his message out on issues like climate change. 
 
"There has to be some sort of way that we can sort through information that passes some basic truthiness tests," Obama said at the conference, using a favorite term of Colbert's during his time on Comedy Central. 
 
The president last appeared on "The Late Show" in February for a pre-Super Bowl sketch.