After the attack, authorities throughout Europe, including Britain, have been revisiting their security arrangements for Christmas and New Year.
Gordon Corera looks at how the UK is working to prevent an attack
Story highlights
Anis Amri is being sought in deadly truck attack on Berlin Christmas market
Suspect was held in August and let go, German security official tells CNN
Berlin (CNN)A manhunt is underway for a 24-year-old Tunisia native in connection with this week's Christmas market attack in Berlin -- a man German authorities say may be "violent and armed" and had been in contact with radical Islamist groups.
Anis Amri is being sought in Monday's truck attack, which left 12 people dead and 48 injured at Breitsheidplatz, a wanted notice issued Wednesday by the German federal prosecutor's office said.
Funny issue is that the thug was arrested and then the authority let him go, consequently he has killed more than twelve people and several maimed as a reward for the Europeans!!! Is that what the authority wanted to witness-- we think the affirmative that unless someone kills is free to walk away..........