two deputy sherriffs have been put on leave pending an investigation after the video was released.a statement released on twitter, the sheriff of shelby county in memphis, floyd bonnerjr, said: president biden has appealed for calm in the city and beyond, amid fears the video could spark protests. he said america's image around the world was on the line. what's at stake is, first of all, the lives of innocent people, number one. number two, it has a lot to say and do with the image of america, it has a lot to do with whether or not we are the country we say we are, a country of law and order and means by which we can peacefully protest and let the courts make thejudgement. some people have taken to the streets tonight in the us. nojustice, no peace! we said, nojustice, no peace! this was the scene in the capital washington dc a short time ago, as crowds march demanding justice for tyre. there are protests in memphis too, the city where tyre was killed. our correspondent barbara plett usher is there. i am standing at this intersection because i was walking with a number of protester