Jon Snow is set to share his experience in a Channel 4 documentary Get the free Morning Headlines email for news from our reporters across the world Sign up to our free Morning Headlines email Sign up to our free Morning Headlines email Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice Veteran broadcaster Jon Snow , a familiar face from Channel 4 News , has been diagnosed with Alzheimer’s disease, the most prevalent form of