A devastating earthquake struck Japan s coast on March 11. The shock caused a massive tsunami that battered coasts all along the Pacific Ocean. Learn more about the disaster, and how earthquakes and tsunamis work.

20/20 gives viewers the most complete picture yet of the death of Osama bin Laden, from inside the situation room in Washington, DC to inside the compound in Pakistan and inside the minds of the brave men who stormed it.

TuneUp Utilities 2012 can quickly make your Windows operating system faster, easier to use, and more secure. And all operations performed on the operating system are completely safe, because all changes are monitored by TuneUp Rescue Center and can be undone at any time. All TuneUp Utilities modules can be accessed through a common interface that is divided into six categories.