First up, the leader of the U.S. Se

First up, the leader of the U.S. Secret Service has quit. Director Julia Pierson`s resignation yesterday followed the calls of some lawmakers,

Republicans and Democrats that she step down. The Secret Service has the job of protecting the president and his family. We reported yesterday on

some of the agency`s recent problems. One of the biggest involved an intruder who jumped the fence outside the White House, ran across the lawn

and made it well inside the building before officers tackled him. He`d been carrying a knife, but the president wasn`t there at the time.

At a congressional hearing yesterday, Director Pierson took full responsibility and said it would never happen again, but Republican

Representative Lindsey Graham called the intrusion "a failure of command on Director Pierson`s part. He said yesterday it was time for new leadership

at the U.S. Secret Service. The White House said President Obama reached the same conclusion.

Despite its name, the demilitarized zone that separates North and South Korea, is the most heavily militarized border in earth. An armistice in

1953 might have stopped fighting in the Korean War,