U.S. postal service trucks sit parked at the post office in Del Mar, California November 13, 2013.   REUTERS/Mike Blake

Monday marks busiest mailing day of year

Monday, December 15 marks the U.S. Postal Service’s busiest mailing day of the year. The U.S. Postal Service expects to process 640 million …

An armed tactical response police officer grabs a hostage as she flees from a cafe under siege at Martin Place in the central business district of Sydney, Australia, Monday, Dec. 15, 2014. New South Wales state police would not say what was happening inside the cafe or whether hostages were being held. But television footage shot through the cafe's windows showed several people with their arms in the air. (AP/Rob Griffith)

Photos: Hostage situation in Sydney cafe

Three people ran out a fire exit of a Sydney cafe where a gunman took an unknown number of people hostage at the height of Monday morning ru…