What have we learnt since Friday's attack?

<div>Parliament meets today to pay tribute to David Amess MP who was stabbed to death at his constituency surgery last week. But what have we learnt about the suspect currently still in police custody? And going forward what can be done to keep our representatives safe? Katy Balls is joined by Isabel Hardman and James Forsyth to discuss these questions as well as the sharp rise in Covid cases. </div>