this is what the fda is supposed to do. i trust the fda to ensure that alls ts are crossed and to make sure that when they come out with the authorization, that this is truly a safe and effective vaccine. >> absolutely. let's put safety first, no question about it. all right. dr. leana wen, thanks as always. we appreciate it. state of emergency has been declared in ontario, canada, as a blockade by truckers protesting covid-19 vaccination rules is crippling trade with the u.s. cnn's lucy kafanov in windsor, ontario for us. lucy, looks like you have got a situation going on behind you right now. what is the latest? >> reporter: jim, you can see and hear the demonstrators behind me. they have been holding firm, despite the cold, despite the wet weather of their blockade of the ambassador bridge, that critical route into detroit, michigan. now, a canadian judge has ordered the protestors to end their five-day blockade, which has disrupted the flow of goods