The King will refer to the "complex threats" facing the UK and France - stressing "these challenges know no borders" - as he delivers a speech to welcome President Emmanuel Macron to his first state visit.
Videos and satellite imagery show how quickly Donald Trump's detention centre in Florida has been constructed - as experts suggest the design of the site is flawed and will compromise the safety of people being held there.
Sophisticated drones sending "overwhelming amounts" of drugs and weapons into prisons represent a threat to national security, according to an annual inspection report by the prisons watchdog.