How soon should I worry about a missed period?

If you know that you are not pregnant, how long is too long before you should be alarmed if you don't have your period? What could be the possible reasons for a delayed period? When should you see a doctor?

There's some Sirius heat in Yakima Valley

Gina Crane, 5, takes a cooling sip of water from a hose as she fills her wading pool at Wixon Park in Selah July 26, 2010. The official high temperature Monday was 99 degrees with the much the same weather forecast for today, well short of the record high of 106 degrees.

Financial Stocks: Financials fueled by SunTrust, regional-bank gains

Shares of U.S. financial companies rose after a slew of positive quarterly results lifted bank stocks, while investors brushed off worries about a worse-than-expected U.S. jobless report and the upcoming release of the European banks' stress-test results.

Biased Lenders

The other big tax con game is the assertion that carbon needs a price. We have yet to see a compelling argument about why this is so. The only argument we have seen is that carbon dioxide emissions from man-made activities are causing the Earth's temperatures to rise. Thus, carbon needs a price so businesses can be discouraged from carbon dioxide emissions...

Robert Peston

Will eurozone banks be rescued twice?