1.  What type of bias is the example an excerpt of?

2.  Mr. Houck concludes his post by observing: "In addition to this story on a former U.S. detainee, the 'big three' of ABC, CBS, and NBC ignored mentioning that the Senate passed the Keystone XL oil pipeline on Thursday with a wide bipartisan margin of 62-to-36."  Why do you think the big three networks chose not to report on this significant story on the day it happened?  (It's news.)