CNN Intl. 00:00 - 01:00

... Blitzer. Wolf Blitzer is in the command center for breaking news, politics and extraordinary reports from around the world.

CNN Intl. 01:00 - 02:00

Dr. Sanjay Gupta follows Alzheimer's patients' treatments over five years. It's the most hopeful era for patients, as new research suggests potential symptom prevention, slowing and even reversal.