Enlarge / Mei from Overwatch has become a grass roots symbol of the Hong Kong protests in the wake of Blizzard's decision. (credit: r/hongkong) A bipartisan group of Senate and House lawmakers has signed a letter expressing "deep concern" over Activision Blizzard's recent decision to punish Ng "Blitzchung" Wai Chung after the pro Hearthstone player expressed support for continuing Hong Kong protests last week.