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"Facebook Dating offers a new twist on what the company once promised —connection — in exchange for what the company values most — your data. But at this point, one would have to be pretty desperate to give a company with Facebook's history any insight into their romantic life."

"Even if that were true, it is worth noting that most chemical waste from producing lab-grown diamonds can be further managed within the lab. But for mined diamonds, it is another story," Tang said.

"External forces are the biggest threat and what the central authorities find most unacceptable because they are behind the violent protesters, offering them help and financial resources. The central authorities are very worried, and are strongly determined to prohibit collusion with external forces to meddle in Hong Kong's internal affairs."

"Education needs to give people the skills to work in the new culture and service industries," Xu said.

"Either China is going to write the rules on 21st century trade or we are," Biden said.