Why Microsoft and Amazon are calling on Congress to regulate facial recognition tech

Some of the biggest companies in the world are pulling their facial recognition technologies from law enforcement agencies across the country. Amazon (AMZN), IBM (IBM), and Microsoft (MSFT) have said that they will either put a moratorium on the use of their technology by police -- or are completely exiting the field citing human rights concerns. The technology, which can be used to identify suspects in things like surveillance footage, has faced widespread criticism after studies found it can be biased against women and people of color. And according to at least one expert, there needs to be some form of regulation put in place if these technologies are going to be used by law enforcement agencies. "If these technologies were to be deployed, I think you cannot do it in the absence of legislation," explained Siddharth Garg, assistant professor of computer science and engineering at NYU Tandon School of Engineering, told Yahoo Finance.