100 laps before he turns 100: How to raise $25m for the NHS

A 99-year-old British war veteran has raised more than $25m for the nation's health service. Captain Tom Moore pledged to walk 100 laps of his garden before his 100th birthday at the end of the month, a feat that caught the attention of many and has kept donations pouring in. Al Jazeera's Rory Challands reports from London, United Kingdom.