.U.K. head of state punishes reactionary rioting triggered after fatal stabbing: "This is not a demonstration" CBS NewsViolent Protests Grip U.K. in Wake of Knife Spell at Dancing Training Class The New York TimesKeir Starmer puts down 'far best thuggery' as unrest flares across Britain Reuters UK' Reactionary ruffians' will definitely be actually promptly hauled into court, Keir Starmer swears The Guardian.