{"footnote":"  \u003Cp class=\u0022leftranged halfline\u0022\u003E    A single target requires six watchers. If, as has been stated, MI5 currently has upwards of five hundred \u0026lsquo;high priority\u0026rsquo; targets, it would need at least three thousand watchers in the field to    ensure 24-hour coverage. Desk coverage concentrates on intercepts (letters, social media etc) and a panoply of \u0026lsquo;intelligence vision systems\u0026rsquo;, including the facial recognition component of    London\u0026rsquo;s congestion charge CCTV network.  \u003C\/p\u003E\n","audio":[],"video":[]}