Go forward, knowing that you are greater than the challenges of your time.
The area of climate change has a dramatic impact on national security.
I don't usually comment on columnists' ideas of what I'm thinking. That's a dangerous game to get into.
The Taliban is resilient.
An aggressor nation or extremist group could gain control of critical switches and derail passenger trains, or trains loaded with lethal chemicals.
My father said I was perfectly suited for Washington because I've always worked around nuts.