Prince Harry has spoken about the importance of clearing landmines in Angola during a speech in central London. The 34-year-old royal follows in the footsteps of his late mother Princess Diana, who famously walked through an area of the country which had only recently been cleared in 1997. Report by Chinnianl. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn