Who is Cesar Sayoc?

The past of the man arrested under suspicion of sending a series of pipe bombs to leading US public figures; Mexico offers social benefits to members of a caravan of thousands of migrants en route to the US if they register as refugees; and as Brazil prepares for the polls we'll hear from those that love and loath - and know - the controversial far right front runner Jair Bolsonaro. Paul Henley discusses these and other issues with Afzal Ashraf, defence analyst, and assistant professor from the school of politics and international relations at Nottingham University; and Sue Black, forensic scientist and Pro-Vice Chancellor Engagement, at Lancaster University.

(Image: US Attorney General Jeff Sessions makes an announcement on the mail bomb suspect. Credit: EPA)