BREAKING:
Here we go....
Trump admin has sent a list of fmr Obama officials to Congress, claiming they sent requests to NSA for purposes of 'unmasking' Flynn's identity in Intel reports
This is a serious reach, as these requests are common... https://thehill.com/policy/national-security/497615-trump-administration-sends-list-to-congress-of-obama-officials-who

2-“There is nothing improper about asking to unmask the name of a US person in a classified intelligence report as long as the requester has authorization and a justified reason,” said Barbara McQuade, a law professor at the University of Michigan.

3-“If an unnamed US person were having suspicious communications with a foreign government, for example, then members of the intelligence community would have a duty to learn the person’s identity by requesting unmasking so that they could effectively assess the information,”

4-"It is typical for government officials to redact the names of American citizens in intelligence reports they receive, in order to protect their privacy. But officials can request that names-for example “U.S. Person 1”-be unmasked internally in order to provide context"