張曉明：普選要確保國家安全和中央權利 (Beijing's point man in HK says China committed to universal suffrage for the city but process must safeguard national security and sovereignty)
Apple Daily, July 16, 2013
http://hk.apple.nextmedia.com/realtime/news/20130716/51562819
Related:
Beijing liaison chief hints at screening of CE candidates
South China Morning Post, July 17, 2013
http://www.scmp.com/news/hong-kong/article/1283960/beijings-top-official-hong-kong-hints-screening-process-ce-candidates