 Back here at home, almost 200 people have been charged in a nationwide operation probing false health care claims involving approximately $2.75 billion in losses. Prosecutors allege two owners of a wound care company accepted more than $330 million as part of a plan to fraudulently bill Medicare for wound grafts. Nurse practitioners were pressured to apply the wound grafts to patients who didn't need them, including some in hospice care who died the day they received that care.