Regarding Robert J. Samuelson’s Jan. 6 op-ed column, “Snowden’s dubious legacy ”:

It’s true that many, especially in my generation, are reckless about online sharing. But Facebook oversharing is not equivalent to waiving privacy rights. Social-media users choose what to share and with whom. Surveillance is a forcible wresting of control from the information’s owner.

Mr. Samuelson wrote, “By all means, let’s debate the NSA,” but he seemed to oppose the only means by which we actually can have that conversation: public knowledge of the National Security Agency’s activities. Mr. Snowden’s legacy is that he did more to enable this debate than anyone else since the NSA’s founding.

Monica Gorman, Hyattsville