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</html><thumbnail_url>https://footprintsoflondon.com/live/wp-content/uploads/2026/09/45393_image.jpg</thumbnail_url><thumbnail_width>2160</thumbnail_width><thumbnail_height>1080</thumbnail_height><description>Explore the shadowy world of covert intelligence! Photo: Vauxhall Cross from Vauxhall Bridge &#x2013; &#xA9; David Charnick 2020 The world of British Intelligence is dominated by the Security Service (MI5) and the Secret Intelligence Service (MI6). But the story of intelligence gathering and covert operations goes way beyond these two bodies. This tour considers not...</description></oembed>
