Their sons sought a more democratic Hong Kong, and got prison
当他们的儿子为香港的民主被关进监狱
The New York Times, November 8, 2017
EN: https://cn.nytimes.com/hk-taiwan/20171108/hong-kong-umbrella-revolution/en-us/
CH: https://cn.nytimes.com/hk-taiwan/20171108/hong-kong-umbrella-revolution/
周永康：香港引入《國歌法》 可見一國兩制平衡正消失 (Alex Chow says balance of “one country, two systems” is disappearing as Hong Kong introduces National Anthem Law)
Radio Television Hong Kong, November 8, 2017
http://news.rthk.hk/rthk/ch/video-gallery.htm?vid=1363610
HKUST “pressures” Umbrella movie organiser to drop democracy figures from screening panel
Hong Kong Free Press, November 8, 2017
https://www.hongkongfp.com/2017/11/08/hkust-pressures-umbrella-movie-organiser-drop-democracy-figures-screening-panel/
馬斐森：港大為免被孤立 最終聯署10大校長聲明 (Mathieson, head of HKU, says he signed joint statement of 10 university heads to avoid isolation)
Mingpao, November 7, 2017
https://news.mingpao.com/ins/instantnews/web_tc/article/20171107/s00001/1510041766386
Related:
HKU head: I signed anti-Hong Kong independence statement to avoid “isolation” from other universities
Hong Kong Free Press, November 7, 2017
https://www.hongkongfp.com/2017/11/07/hku-head-i-signed-anti-hong-kong-independence-statement-avoid-isolation-universities/