Here’s why protesters are holding up white paper in China: The tactic popped up last year during protests in Hong Kong, where security rules are so strict that one woman didn’t know what to put on a sign, so she put nothing. Now, the papers have become a fill-in-the-blank way to express anger over strict COVID-19 lockdowns, economic struggle and censorship. Blank pages that say a lot. “Whenever they post anything controversial online, it gets censored. So they’re showing that, you know, at the l