(This is the Warren Buffett Watch newsletter, news and analysis on all things Warren Buffett and Berkshire Hathaway. You can sign up here to receive it every Friday evening in your inbox.) Berkshire Hathaway's new CEO, Greg Abel, generated some significant headlines during a roughly half-hour live interview on CNBC's "Squawk Box." Shortly after an SEC filing from the company early Thursday morning disclosed Berkshire "commenced repurchasing shares of our common stock" the day before, Abel told