than the man forbes says is the world's wealthiest, bill gates. >> all these accusations about billions and billions of dollars of his fortune, this is not true. don't believe in them. he's got nothing. he's got what he writes in his personal financial declaration every year. >> putin's most recent financial declaration says that he personally owns less than half an ache eare of land, a roughly square foot apartment and a 200 square foot the garage in which maybe he puts the vehicle listed in that document, a vintage russian sedan, a 4x4 and a trailer hike th trailer like this one. the document does not say how much putin has in the bank or in investments. adam zubin talked to the bbc.