Report Claims Tax Havens Cost Africa $38 Billion a Year

Campaigners are calling for the world's richest countries to end so-called tax havens, which allow companies to transfer profits among jurisdictions and reduce their tax bills. An investigation headed by former U.N. Secretary General Kofi Annan has concluded that the practice costs Africa $38 billion a year in lost revenue. Henry Ridgwell reports for VOA from London.