On Thursday, four U.S. senators wrote to Amazon CEO Jeff Bezos, asking him to explain Amazon’s alleged tracking and monitoring of employees and restricting union actions. The four senators are Brian Schatz, Elizabeth Warren, Bernie Sanders and Kirsten Gillibrand. < / P > < p > they asked Amazon to explain in detail what steps it had taken to prevent employees from forming workers’ organizations, how to track workers who participated in the strike, and how Amazon cooperated with law firms in preventing employees from forming labor unions. “Amazon has decided to invest heavily in the system in order to retaliate against employees, limit their criticism of unsafe and unhealthy working conditions, and destroy employees’ rights,” four senators said in their letters. In addition, Amazon also regards trade unions and workers’ rights movements as threats to companies, and it is unacceptable that these movements are equivalent to hate groups and < p > < p > the open markets Institute, a research and advocacy organization based in Washington, D.C., published a study in September this year that also claimed that Amazon uses large-scale worker monitoring to increase employee production, and that there may be restrictions on labor unions across the United States. < p > < p > earlier this month, Amazon said that more than 19000 of its U.S. frontline employees were infected with coronavirus this year, accounting for 1.44% of its total employees. This is the number that labor rights people who criticized Amazon’s response to the epidemic have asked the company to disclose. < p > < p > on Thursday, Amazon did not immediately respond to requests for comment, and the retail giant said it did not track or monitor employees who were likely to be organizing, planning strikes, or talking to the media. < p > < p > in May, it was reported that Amazon had long resisted employees from forming unions. A spokesman for Amazon said at the time that the company had provided everything the labor groups asked for. Global Tech