Move from anti-immigration or anti-Muslim views to violence is ‘most marked trend’ in spy agency’s caseload over last year Extremists holding anti-immigration opinions are becoming increasingly likely to consider carrying out terrorist attacks against immigration centres and asylum hotels in the UK, the head of MI5 has warned. Ken McCallum said a shift from radicalised rightwing sentiment to violence was “the most marked trend” in the spy agency’s caseload over the past year, contributing to a rise in the overall UK terror threat level. Russia remains “aggressor number one” as the Kremlin continues to lash out against the west with assassination plots, explosive threats and cyber-attacks that at times stop “not much short” of conventional warfare. Moscow tried to interfere in the 2016 Brex