大象传媒

Following the Berlin market attack, what level of surveillance are you happy with? After details emerged that the Tunisian man wanted over the Lorry attack had been under surveillance earlier this year, we鈥檒l speak to a group of former counter intelligence experts about the challenges of their jobs.

Plus, does it matter what language you speak in public? We are asking this after YouTube star Adam Saleh said he was taken off a flight from London to New York because he spoke to his mother in Arabic on the phone. He said a fellow passenger had complained about feeling uncomfortable. We will speak to people from different parts of the world about their experiences of speaking languages in public that are different to the local one.

Picture: A policeman in German studies surveillance cameras.

Picture credit:ROLAND WEIHRAUCH/AFP/Getty Image