If the Bluefin-21 sonar finds the Flight 370 wreckage authorities will likely call in high-tech equipment that is usually used in oil drilling. Rosa Flores takes a look at the subs that can be used to retrieve objects that are several miles below the ocean's surface.
Scanning the ocean floor is a slow and methodical process. Stephanie Elam got an up close look at how this is done, and the type of images investigators are working with.
Even small pieces of wreckage from Flight 370 could provide investigators with big clues to the plane's fate. Understanding what the debris reveals is both a science and an art. USC's Aviation Safety and Security Accident Lab teaches students how to find those clues. Stephanie Elam got a lesson from their aviation safety expert Michael Barr.
Time is running out for the locator pings coming from Flight 370's black boxes. Searchers have about 13 days until the locator “pings” could go silent on the black boxes. They could use some high-tech, highly sensitive microphones originally designed to locate enemy submarines. Stephanie Elam demonstrates how they work.
A polio-like illness has infected as many as 20 California children in the last 18 months. It causes weakness in limbs and paralysis. One family described to Stephanie Elam how fast their child's symptoms set in and what they are doing to help him regain the full function of his arm.
Chief Medical Correspondent Dr. Sanjay Gupta talks to Anderson about why we are just hearing about this illness now.
Bone-chilling cold is gripping much of the country. Some areas are seeing their lowest temperatures in 20 years. Authorities already blame the cold for at least 13 deaths. This phenomenon is the result of a polar vortex – a mass of frigid swirling air from the north. Stephanie Elam takes a look at some of the worst weather in America.
Criminal charges could be filed against the owners of a California nursing home. On the day the state shut down the facility, most of the staff walked off the job. They left 14 elderly patients behind, and no arrangements were made to move them elsewhere. Three employees stayed behind to help the abandoned patients. Stephanie Elam has been digging into this story.
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Mason is a student at Sparks Middle School. He was there Monday morning, waiting for the first bell, when he heard gunfire. Then he saw his friend, a classmate, coming toward him carrying a nine-millimeter pistol. Seconds later, Mason was shot in his stomache. Today, as he heals, he is telling his story to Stephanie Elam.
A community is struggling to come to terms with the deadly shooting at a middle school in Sparks, Nevada, where a student shot and killed a teacher and wounded two students before taking his own life. Now, newly-released 911 recordings are shedding new light on those chaotic moments, and a hero emerges. Stephanie Elam reports.
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