by Juliette MICHEL NEW YORK, United States (AFP) — From Wall Street to Silicon Valley, slaughterhouses to airlines, more American firms are demanding their employees get Covid-19 vaccines to return to the workplace, and are willing to fire them if they violate the rule. CNN news network terminated three employees who flouted the policy and went to work without being immunized against the coronavirus. “Let me be clear — we have a zero-tolerance policy on […]