The scene of a terrorist attack is seen on December 20, 2016 after a lorry (green lorry on the L) smashed into a busy Christmas market in central Berlin. German police said they were treating as "a probable terrorist attack" the killing of 12 people when the speeding lorry cut a bloody swath through the packed Berlin Christmas market. / AFP / Odd ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images)
