What Powers Will US Special Counsel Robert Mueller Have?

Ex-FBI chief Robert Mueller appointed to lead the investigation into alleged links between the Trump campaign and Moscow

Also in the programme: calls for the resignation of the Brazilian president over a corruption scandal, and the Japanese princess choosing to marry out of the palace.

(Photo: Former FBI director Robert Mueller at the swearing-in of former FBI Director James Comey in 2013 in Washington, DC. Credit: Getty Images)