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"China is a hugely important market for our pork exports and it is vital that we maintain our strong relationship with buyers and continue to fly the flag for our red meat, especially as we are on the cusp of shipping beef to China for the first time in over 20 years," Stewart said.

"China is spending a lot of money trying to improve the efficiency of its pig industry," Zhao said.

"But slashing prices may also have a side effect: hurting its brand image," Xiang added.

"But that place wasn't exactly a Chinatown back then," said Corky Lee, a photographer who has spent the past half century documenting the lives of Chinese Americans, their pain and pathos, struggle and survival.

"CRISPR-GO could provide an opportunity to answer that question by enabling us to target, move and relocate very specific stretches of DNA, and see how their new placements in the nucleus change how they function," said Qi, the paper's senior author.