Why Buffett took out an ad on the same page as one for a strip club

To seek permission from the Federal Reserve to hold 25% of the credit-card issuer's shares

People obsess over Warren Buffett’s moves in the stock market, analysing every word he says in the media and regulatory filings for clues about his investments.

But even the most sharp-eyed observers could be excused for missing a disclosure he made Friday about American Express Co.

The billionaire took out a fine-print ad in the New York Daily News to say he’s seeking permission from the Federal Reserve to hold as much as 25 per cent of the credit-card issuer’s shares. The notice appeared alongside listings for a Brooklyn co-op, a $2,500 Honda Accord and a liquor license application, plus a quarter-page