Host Mo Rocca shows us that soon you may be able to print your pancakes; Igor Sikorsky, the father of the helicopter; recording sound off of leaves; and never lose anything again.

Host Mo Rocca shows us how stores use facial recognition software to target big-ticket shoppers; the legacy of Abraham Lincoln; how jock tech is changing the way we exercise; and the young Irishman who created a sports mouth guard to detect concussions.