"My National Security Letter Gag Order"

From the Washington Post:

Living under the gag order has been stressful and surreal. Under the threat of criminal prosecution, I must hide all aspects of my involvement in the case -- including the mere fact that I received an NSL -- from my colleagues, my family and my friends. When I meet with my attorneys I cannot tell my girlfriend where I am going or where I have been. I hide any papers related to the case in a place where she will not look. When clients and friends ask me whether I am the one challenging the constitutionality of the NSL statute, I have no choice but to look them in the eye and lie.

This is not about Chun Do Hwan's NSL, is it?

It seems to be about a request to identify a user of an Internet access service.