China tightens mail security after deadly Guangxi parcel bomb attack
South China Morning Post, October 4, 2015
http://www.scmp.com/news/china/society/article/1863874/china-tightens-mail-security-after-deadly-guangxi-parcel-bomb
China’s desperate battle against separatist terrorism
Wall Street Journal, October 2, 2015
http://blogs.wsj.com/chinarealtime/2015/10/02/chinas-desperate-battle-against-separatist-terrorism/