(Lam Yik Fei/The New York Times) After the protest in Hong Kong Sunday, Columbia Journalism Review’s Amanda Darrach discusses the importance of and the best way to estimating crowd sizes in news coverage. CJR Two new bills have been introduced to Congress aimed to help hurting newsrooms. Nieman Lab The Christchurch massacre trial has begun, and New Zealand’s major news organizations have vowed to not cover any white supremacist ideology, including imagery, symbols or hand signals, championed by the accused or his supporters.