Professor on U.S. officials entering into Chinese consulate in Houston

Following reports of some U.S. law enforcement officials entering into the compound of the Chinese consulate in Houston Friday afternoon, the Chinese Foreign Ministry has made a protest, calling the move a "violation" of the Vienna Convention on the Law of Treaties and the Sino-U.S. Consular Treaty. City University of Hong Kong's Law Professor Wang Jiangyu shares his insights on the moves and implications from an international law perspective.