On March 23, the UK marked one year since its first lockdown. Britons marked the occasion with a moment of silence: A small step in coming to grips with the unimaginable loss, and change to all of our lives. CNN’s Phil Black reports.On March 23, the UK marked one year since its first lockdown. Britons marked the occasion with a moment of silence: A small step in coming to grips with the unimaginable loss, and change to all of our lives. CNN’s Phil Black reports.