Why is it only those who don't even speak the language that are posting videos filled with opinions and suppositions that don't even reflect what the videos are showing. The cube is just a cabin to drive suspected people to a quarantine zone where they will be isolated from others for 2 weeks, and will be sent to a hospital if they are actually infected. You can clearly see the husband/boyfriend hugging his SO trying to calm her down. That one cop is there just to make sure people who freak out don't attack the medical staff. Now, they are sent to quarantine zones so they don't clog hospitals like it happened at the beginning of the outbreak where people who weren't infected and just had a cold/flu ended up being infected because those who were actually infected and not handled by the overwhelmed hospital staff. Now, anyone who has been in China knows that people aren't keen to wait in a queue and usually try to cut it. Now imagine them panicked, clueless about how the virus might spread, looking for answers from doctors...