Former CIA analyst says Nunes Memo vindicates the FBI

He starts around 2:20 in this video. The CIA and FBI take into account that sources are biased and compare their information with other sources to verify accuracy. Plus the memo notes that Steele was a long-time FBI source, which validates that Steele's history of information had proved to be accurate and useful. And finally, the memo indicates that while the FISA renewal might have relied in part on Steele, it was again compared with several other sources. He thinks the Dems should be grateful to Nunes for proving these points.