A member of a local public security force tries to overpower a man holding a hatchet as his wife screams at the Picun village, home to thousands of migrant workers in the suburbs of Beijing, China January 24, 2017. Brandishing a hatchet, He Dan charged at local public security personnel as they were arguing and scuffling with his wife Zhang Shaolei over the couple's vehicle parked in the village's main street. The couple said security personnel asked them to pay a 500 RMB ($73) fine as they were getting ready to leave to their hometown for the Spring Festival. REUTERS/Damir Sagolj TPX IMAGES OF THE DAY 

Onlookers watch as a couple scuffles with members of a local public security force at the Picun village, home to thousands of migrant workers in the suburbs of Beijing, China January 24, 2017. Brandishing a hatchet, He Dan charged at local public security personnel as they were arguing and scuffling with his wife Zhang Shaolei over the couple's vehicle parked in the village's main street. The couple said security personnel asked them to pay a 500 RMB ($73) fine as they were getting ready to leave to their hometown for the Spring Festival. REUTERS/Damir Sagolj 

He Dan massages his wife's chest as she tries to catch a breath after scuffling with members of a local public security force at the Picun village, home to thousands of migrant workers in the suburbs of Beijing, China January 24, 2017. Brandishing a hatchet, He Dan charged at local public security personnel as they were arguing and scuffling with his wife Zhang Shaolei over the couple's vehicle parked in the village's main street. The couple said security personnel asked them to pay a 500 RMB ($73) fine as they were getting ready to leave to their hometown for the Spring Festival. REUTERS/Damir Sagolj 

Members of a local public security force try to overpower a couple at the Picun village, home to thousands of migrant workers in the suburbs of Beijing, China January 24, 2017. Brandishing a hatchet, He Dan charged at local public security personnel as they were arguing and scuffling with his wife Zhang Shaolei over the couple's vehicle parked in the village's main street. The couple said security personnel asked them to pay a 500 RMB ($73) fine as they were getting ready to leave to their hometown for the Spring Festival. REUTERS/Damir Sagolj 

A member of a local public security force holds a seized hatchet as he and others try to overpower a couple at the Picun village, home to thousands of migrant workers in suburbs of Beijing, China January 24, 2017. Brandishing a hatchet, He Dan charged at local public security personnel as they were arguing and scuffling with his wife Zhang Shaolei over the couple's vehicle parked in the village's main street. The couple said security personnel asked them to pay a 500 RMB ($73) fine as they were getting ready to leave to their hometown for the Spring Festival. REUTERS/Damir Sagolj TPX IMAGES OF THE DAY 

(Front L-R) London Olympic gold medallist's Zou Shiming, Zhang Chenglong, Lin Dan, Ye Shiwen (back C) and Chen Long (back R) attend a news conference in Hong Kong August 24, 2012. Chinese gold medallists are visiting Hong Kong for three days to demonstrate their skills. REUTERS/Tyrone Siu (CHINASPORT - Tags: SPORT OLYMPICS) 

China's Dan Zhang (L) and Hao Zhang skate during the pairs' free skate program at the International Skating Union (ISU) Grand Prix of Figure Skating Finals at the Pavillon de la Jeunesse in Quebec City December 10, 2011. REUTERS/Mathieu Belanger (CANADA - Tags: SPORT FIGURE SKATING) 

China's Zhang Dan (top) and Zhang Hao skate during the pairs' short program at the International Skating Union (ISU) Grand Prix of Figure Skating Finals competition at the Pavillon de la Jeunesse in Quebec City, December 9, 2011. REUTERS/Mathieu Belanger (CANADA - Tags: SPORT FIGURE SKATING) 

China's Zhang Dan and Zhang Hao skate during the pairs' short program at the International Skating Union (ISU) Grand Prix of Figure Skating Finals competition at the Pavillon de la Jeunesse in Quebec City, December 9, 2011. REUTERS/Mathieu Belanger (CANADA - Tags: SPORT FIGURE SKATING) 

China's Zhang Dan and Zhang Hao skates during the pairs' short program at the International Skating Union (ISU) Grand Prix of Figure Skating Finals competition at the Pavillon de la Jeunesse in Quebec City, December 9, 2011. REUTERS/Mathieu Belanger (CANADA - Tags: SPORT FIGURE SKATING) 

Zhang Dan and Zhang Hao of China compete during the pairs free skating program at the Cup of China ISU Grand Prix of Figure Skating in Shanghai November 5, 2011. REUTERS/Carlos Barria (CHINA - Tags: SPORT FIGURE SKATING) 

Zhang Dan and Zhang Hao of China compete during the pairs free skating program at the Cup of China ISU Grand Prix of Figure Skating in Shanghai November 5, 2011. REUTERS/Carlos Barria (CHINA - Tags: SPORT FIGURE SKATING) 

Zhang Dan (R) and Zhang Hao of China compete during the pairs short program at the Cup of China ISU Grand Prix of Figure Skating in Shanghai November 4, 2011. REUTERS/Carlos Barria (CHINA - Tags: SPORT FIGURE SKATING) 

Zhang Dan (R) and Zhang Hao of China compete during the pairs short program at the Cup of China ISU Grand Prix of Figure Skating in Shanghai November 4, 2011. REUTERS/Carlos Barria (CHINA - Tags: SPORT FIGURE SKATING) 

Zhang Dan and Zhang Hao of China perform at the Smucker's Skating Spectacular following placing second in the pairs competition at the Skate America ISU Grand Prix of Figure Skating in Ontario, California October 23, 2011. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT FIGURE SKATING) 

Zhang Dan (R) and Zhang Hao of China perform during the pairs free skating program on their way to placing second at the Skate America ISU Grand Prix of Figure Skating in Ontario, California October 23, 2011. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT FIGURE SKATING) 

Zhang Dan and Zhang Hao of China perform during the pairs free skating program on their way to placing second at the Skate America ISU Grand Prix of Figure Skating in Ontario, California October 23, 2011. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT FIGURE SKATING) 

Zhang Dan and Zhang Hao of China perform during the pairs free skating program on their way to placing second at the Skate America ISU Grand Prix of Figure Skating in Ontario, California October 23, 2011. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT FIGURE SKATING) 

Silver medalists Zhang Dan (L) and Zhang Hao of China look at their medals during the winners ceremony for the pairs competition at the Skate America ISU Grand Prix of Figure Skating in Ontario, California October 23, 2011. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT FIGURE SKATING) 

Silver medallist Zhang Hao (2nd L) of China playfully offers his flowers to gold medallist Robin Szolkowy (2nd R) of Germany, as their partners Zhang Dan (L) and Aliona Savchenko (R) look on, during the medal ceremony for the pairs competition at the Skate America ISU Grand Prix of Figure Skating in Ontario, California October 23, 2011. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT FIGURE SKATING) 

Zhang Dan and Zhang Hao of China perform during the pairs free skating program on their way to placing second at the Skate America ISU Grand Prix of Figure Skating in Ontario, California October 23, 2011. REUTERS/Danny Moloshok (UNITED STATES) 

Zhang Dan and Zhang Hao of China perform during the pairs short program at the Skate America ISU Grand Prix of Figure Skating in Ontario, California October 22, 2011. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT FIGURE SKATING) 

Zhang Dan and Zhang Hao of China perform during the pairs short program at the Skate America ISU Grand Prix of Figure Skating in Ontario, California October 22, 2011. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT FIGURE SKATING) 

Zhang Dan and Zhang Hao of China perform during the pairs short program at the Skate America ISU Grand Prix of Figure Skating in Ontario, California October 22, 2011. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT FIGURE SKATING) 

Zhang Dan and Zhang Hao of China perform during the pairs short program at the Skate America ISU Grand Prix of Figure Skating in Ontario, California October 22, 2011. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT FIGURE SKATING) 

Zhang Dan and Zhang Hao of China perform during the pairs short program at the Skate America ISU Grand Prix of Figure Skating in Ontario, California October 22, 2011. REUTERS/Danny Moloshok (UNITED STATES - Tags: SPORT FIGURE SKATING) 

Zhang Dan and Zhang Hao of China perform during the KCC Switzen All That Skate Spring 2011 figure skating gala show at Jamsil indoor stadium in Seoul May 6, 2011. REUTERS/Lee Jae-Won (SOUTH KOREA - Tags: SPORT FIGURE SKATING) 

Zhang Dan and Zhang Hao of China perform during the KCC Switzen All That Skate Spring 2011 figure skating gala show at Jamsil indoor stadium in Seoul May 6, 2011. REUTERS/Lee Jae-Won (SOUTH KOREA - Tags: SPORT FIGURE SKATING) 

Japan's Miyuki Maeda (R) and Satoko Suetsuna celebrate their winning against China's Zhang Dan and Zhang Zhibo (not in the picture) during their women's double match at the Japan Super Series 2010 badminton championships in Tokyo September 24, 2010. REUTERS/Kim Kyung-Hoon (JAPAN - Tags: SPORT BADMINTON) 

Japan's Miyuki Maeda (R) and Satoko Suetsuna return a shot to China's Zhang Dan and Zhang Zhibo (not in the picture) during their women's doubles match at the Japan Super Series 2010 badminton championships in Tokyo September 24, 2010. REUTERS/Kim Kyung-Hoon (JAPAN - Tags: SPORT BADMINTON) 

Zhang Dan (L) and Zhang Hao (R) of China react after performing in the Pairs Free Skating event at the World Figure Skating Championships in Turin March 24, 2010. REUTERS/Max Rossi (ITALY - Tags: SPORT FIGURE SKATING) 

Zhang Dan (L) and Zhang Hao (R) of China perform during the Pairs Free Skating event at the World Figure Skating Championships in Turin March 24, 2010. REUTERS/Max Rossi (ITALY - Tags: SPORT FIGURE SKATING) 

Zhang Dan (L) and Zhang Hao (R) of China perform during the Pairs Free Skating event at the World Figure Skating Championships in Turin March 24, 2010. REUTERS/Max Rossi (ITALY - Tags: SPORT FIGURE SKATING) 

Zhang Dan (L) and Zhang Hao (R) of China perform during the Pairs Free Skating event at the World Figure Skating Championships in Turin March 24, 2010. REUTERS/Max Rossi (ITALY - Tags: SPORT FIGURE SKATING) 

Zhang Dan (up) and Zhang Hao of China perform during the Pairs Free Skating event at the World Figure Skating Championships in Turin March 24, 2010. REUTERS/Max Rossi (ITALY - Tags: SPORT FIGURE SKATING) 

Zhang Dan and Zhang Hao (R) of China perform during the Pairs Free Skating event at the World Figure Skating Championships in Turin March 24, 2010. REUTERS/Giampiero Sposito (ITALY - Tags: SPORT FIGURE SKATING) 

Zhang Dan (front) and Zhang Hao of China perform during the Pairs Free Skating event at the World Figure Skating Championships in Turin March 24, 2010. REUTERS/Giampiero Sposito (ITALY - Tags: SPORT FIGURE SKATING) 

Zhang Dan (L) and Zhang Hao (R) of China perform during the Pairs Free Skating event at the World Figure Skating Championships in Turin March 24, 2010. REUTERS/Giampiero Sposito (ITALY - Tags: SPORT FIGURE SKATING) 

Zhang Dan (L) and Zhang Hao of China perform during the Pairs Free Skating event at the World Figure Skating Championships in Turin March 24, 2010. REUTERS/Giampiero Sposito (ITALY - Tags: SPORT FIGURE SKATING) 

Zhang Hao and Zhang Dan (R) of China perform during the Pairs short program event at the World Figure Skating Championships in Turin March 23, 2010. REUTERS/Max Rossi (ITALY - Tags: SPORT FIGURE SKATING) 

Zhang Dan (L) and Zhang Hao of China perform during the Pairs short program event at the World Figure Skating Championships in Turin March 23, 2010. REUTERS/Max Rossi (ITALY - Tags: SPORT FIGURE SKATING) 

Zhang Hao and Zhang Dan (R) of China perform during the Pairs short program event at the World Figure Skating Championships in Turin March 23, 2010. REUTERS/Giampiero Sposito (ITALY - Tags: SPORT FIGURE SKATING) 

Zhang Hao (L) and Zhang Dan of China perform during the Pairs short program event at the World Figure Skating Championships in Turin March 23, 2010. REUTERS/Max Rossi (ITALY - Tags: SPORT FIGURE SKATING) 

Zhang Dan and Zhang Hao (R) of China perform during the Pairs short program event at the World Figure Skating Championships in Turin March 23, 2010. REUTERS/Max Rossi (ITALY - Tags: SPORT FIGURE SKATING) 

Zhang Dan (L) and Zhang Hao (R) of China perform during the Pairs short program event at the World Figure Skating Championships in Turin March 23, 2010. REUTERS/Max Rossi (ITALY - Tags: SPORT FIGURE SKATING) 

China's Zhang Dan (L) and Zhang Hao practice for the Pairs competition at the World Figure Skating Championships in Turin March 21, 2010. REUTERS/Max Rossi (ITALY) 

China's Zhang Dan (L) and Zhang Hao practice for the Pairs competition at the World Figure Skating Championships in Turin March 21, 2010. REUTERS/Giampiero Sposito (ITALY) 

China's Zhang Dan (L) and Zhang Hao practice for the Pairs competition at the World Figure Skating Championships in Turin March 21, 2010. REUTERS/Giampiero Sposito (ITALY) 

China's Zhang Dan (L) and Zhang Hao perform during the figure skating exhibition gala at the Vancouver 2010 Winter Olympics, February 27, 2010. REUTERS/David Gray (CANADA) 

China's Zhang Dan (top) is thrown by partner Zhang Hao as they perform during the figure skating exhibition gala at the Vancouver 2010 Winter Olympics, February 27, 2010. REUTERS/Lucy Nicholson (CANADA) 

China's Zhang Dan (top) and Zhang Hao perform during the pairs free skating figure skating event at the Vancouver 2010 Winter Olympics February 15, 2010. REUTERS/David Gray (CANADA) 

China's Zhang Hao (L) falls to the ice during his performance with compatriot Zhang Dan in the pairs free skating figure skating event at the Vancouver 2010 Winter Olympics February 15, 2010. REUTERS/Lucy Nicholson (CANADA) 

China's Zhang Dan (top) and Zhang Hao perform during the pairs free skating figure skating event at the Vancouver 2010 Winter Olympics February 15, 2010. REUTERS/Andy Clark (CANADA) 

Zhang Dan (in white) and Zhang Hao of China perform during the pairs short programme figure skating event at the Vancouver 2010 Winter Olympics, February 14, 2010. REUTERS/Hans Deryk (CANADA)

Zhang Dan (in white) and Zhang Hao of China perform during the pairs short programme figure skating event at the Vancouver 2010 Winter Olympics, February 14, 2010. REUTERS/Hans Deryk (CANADA)

Zhang Dan and Zhang Hao (top) of China perform during the pairs short programme figure skating event at the Vancouver 2010 Winter Olympics, February 14, 2010. REUTERS/David Gray (CANADA)

Zhang Dan (top) and Zhang Hao of China perform during the pairs short programme figure skating event at the Vancouver 2010 Winter Olympics, February 14, 2010. REUTERS/David Gray (CANADA)

Zhang Dan (top) and Zhang Hao of China perform during the pairs short programme figure skating event at the Vancouver 2010 Winter Olympics, February 14, 2010. REUTERS/David Gray (CANADA)

Zhang Dan (L) and Zhang Hao of China perform during the pairs short programme figure skating event at the Vancouver 2010 Winter Olympics, February 14, 2010. REUTERS/Lucy Nicholson (CANADA)

Zhang Dan (L) and Zhang Hao of China perform during the pairs short programme figure skating event at the Vancouver 2010 Winter Olympics, February 14, 2010. REUTERS/Lucy Nicholson (CANADA)