Wall Street and Main Street perk up and take notice when superinvestor Warren Buffett buys a bunch of stock in a major company.
This week, the Oracle of Omaha's investment vehicle, Berkshire Hathaway, generated attention by boosting its stake in two major airlines with deep Chicago-area roots, United and American.
My question: What's up here?
This is not a gratuitous slap at Buffett or the airlines. Rather, it reflects a genuine sense of wonder, especially when you consider that in 2013 Buffett seethed at the thought of plowing hard-earned cash into the airline industry and called it a "death trap for investors" because it was volatile and loved to eat up...