Ajit Jain

Berkshire Hathaway expanded its list of potential successors to CEO Warren Buffett to four candidates from three.

Berkshire Hathaway's annual meeting will be held on May 1. Here are 10 questions attendees should ask Warren Buffett -- ranging from the financial reform bill to his Goldman deal and who the famed investor favors to succeed him at Berkshire.

Fitch just stripped Berkshire Hathaway (BRK.A) of its "AAA" rating and dropped it one notch to "AA+" because of its "earnings and capital volatility derived from its large, unhedged market exposures." But that's not all. Fitch is also uncomfortable with Berkshire's future, saying Berkshire is too...