'You did me a great favor': Billionaire investor Thomas Kaplan personally thanked Warren Buffett for buying 3,500 tons of silver

· *Thomas Kaplan thanked Warren Buffett in person for buying nearly 3,500 tons of silver, he told Business Insider.*
· *"You did me a great favor," the billionaire recalled telling the famed investor, as the 1997 purchase relegitimized silver as an investment and enabled his silver company to go public.*
· *"Glad to hear...