Tennis has given me so many opportunities, and I feel very lucky to have achieved whatever I have, especially coming from a country that does not have a great history in the game.

Coaches were all saying that I was really talented and I had potential, but coming from Serbia, it wasn't easy. The '90s were the hardest years for our country - we went through two wars.

Everyone wants to be happy - people find happiness in different ways. While you want to pursue your career 100 percent, I think it is very hard to give 100 percent in something else. It's important to find this balance, and priorities change throughout life.

I think it's better not to mix professional life and personal life - although it is hard.

Diplomacy in general does not resolve conflicts. Wars end not due to peace processes, but due to one side giving up.

The U.S. spent billions of dollars to build a secular, professional national Iraqi army but failed because, despite all the U.S.-supplied guns, tanks and planes, the Iraqi military fell apart when challenged by a band of terrorists.

With no other security forces on hand, U.S. military was left to confront, almost alone, an Iraqi insurgency and a crime rate that grew worse throughout the year, waged in part by soldiers of the disbanded army and in part by criminals who were released from prison.

The Committee's review of a series of intelligence shortcomings, to include intelligence prior to 9/11 and the pre-war intelligence on Iraq, clearly reveal how vital a diverse intelligence workforce is to our national security.