Voters in Colorado, Oregon and Washington state weigh in on ballot initiatives that would legalize marijuana for recreational use. Federal law, state initiatives and the ongoing debate over legalizing pot.

Defense Secretary Leon Panetta says the United States is facing the possibility of a "cyber-Pearl Harbor." James Lewis of the Center for Strategic and International Studies, Thom Shanker of the New York Times and Greg Nojeim of the Center for Democracy and Technology join Diane to discuss concerns over cybersecurity and the administration’s plans to combat the threat.

Montgomery County parents are working ahead of time to prevent alcohol-related crashes during homecoming season.

Kids throughout the region will walk or bike to school today as part of International Walk to School Day; in Takoma Park, residents and kids with several safe routes to school have a reason to celebrate.

The Washington Monument will soon be encased in metal scaffolding as repairs begin on the damage caused by the earthquake that struck the east coast in August of 2011.

The District's breathalyzer screening program for suspected drunk drivers will go back into effect Friday after the city was able to purchase new, properly calibrated machines. 

Frequent fliers can now submit to screenings well in advance of their flights, allowing them to use new dedicated security lines at airports like Dulles, skipping length waits altogether.

A new California law allows self-driving cars on state roads. Proponents promise computer-controlled vehicles will reduce accidents and congestion. Guest host Tom Gjelten and his guests discuss the future of driving in the digital age.

The role of government in health care is a hot-button political issue in today's debates. But a top surgeon at Johns Hopkins Hospital argues the most important reform needed is more transparency. Dr. Marty Makary describes how to make medicine more accountable.

Ocean City's boardwalk will be equipped with 10 new surveillance cameras and a complex underground digital network by next summer.