Warren Buffett (Trades, Portfolio) is now joined by his two investing side-kicks, Ted Weschler and Todd Combs, who make independent decisions about stocks for Berkshire Hathaway (BRK.A)(BRK.B)’s portfolio. The three have unveiled their first-quarter stock activity. The new buy was Verizon (VZ), with sizable adds going to Liberty Global Plc (LBTYK)(LBTYA) and [...]