During the Occupy protests two years ago, Slate had an excellent piece on the mask's origins and its use by protesters and the hacker group Anonymous. And The Guardian did a post on who owns the rights to the mask. Both are worth reading.
Krishnadev Calamur is NPR's deputy Washington editor. In this role, he helps oversee planning of the Washington desk's news coverage. He also edits NPR's Supreme Court coverage. Previously, Calamur was an editor and staff writer at The Atlantic. This is his second stint at NPR, having previously worked on NPR's website from 2008-15. Calamur received an M.A. in journalism from the University of Missouri.