Fears are growing in London that the Olympics may not start smoothly. The union representing border agents at Heathrow airport is planning to go on strike a day before the ceremonies begin.

The British government says it will have to deploy an extra 3,500 soldiers to protect the Olympic Games after a private security contractor abruptly said it would fall short.

While Wall Street had been bogged down by regulations and scandal, London took the crown for leading global financial center. Now, with the Barclays and LIBOR-rigging investigation, the British city could find itself being regulated as well.

Europe's tallest skyscraper is opening today on the south bank of the Thames River. It's called the Shard -- as in a shard of glass -- and it's more than a thousand feet tall. But the real challenge wasn't just building it; they also need to find a way to fill it up.