workers, there's been some controversy, some physicians of public health think this shouldn't be a focus. but to keep the critical infrastructure going, we need it. >> let's dig in on that because there was a lot of news over vaccine mandates. texas has banned any employer in the state from requiring a vaccine. a federal judge in maine says health care workers cannot opt out of the vaccine. but maybe the most confounding cases in my hometown chicago where the police union, the police union is telling cops not to get vaccinated. the mayor lori lightfoot is not having it. take a listen to what she said, and then we'll talk. >> our goal is to create a safe workplace, and the best way that we can do that, the biggest tool that we have is by getting people fully vaccinated. >> it seems like she's stating the obvious, but somehow this has become a debate. how is it that front line workers, like the colleagues you're talking about, are opposed to this vaccine when they went through such trauma over 18 months, and they face