MI6 boss Alex Younger warns about threat posed by new technology . The former head of MI6, Sir John Scarlett, has warned that the internet is a 'huge threat' to national security.
MI6 boss Alex Younger warns about threat posed by new technology . He said intelligence services were restricted by law unlike terrorists . Comes after former US spy Edward Snowden stole 1.7m documents . The massive leak revealed sensitive intelligence gathering techniques .