U.S. hospitals discard more than 2 million tons of medical waste each year, a portion of which is unused, surplus medical supplies, according to Healthcare Without Harm. Scott Karstenson began collecting some of that - ultrasound machines, laser knives, whatever they would give him - about 10 years ago after attending a church session about medical needs in India. A respiratory therapist, Scott Karstenson saw hospital waste firsthand. Sterile gauze packs, for example, are tossed after the expiration date even though they're perfectly usable, he said. More than 30 volunteers helped Karstenson haul the stored supplies and load them. Helpers included Marquette University's golf team and a Mayo Clinic group that brought sheets, gowns and other offerings.