One of the signs of a healthy heart, they say, is that you don’t even notice it. The same could be said about scams: whatever be the size of the swindle, it’s roaring business as long as it passes under the radar. An ongoing scam of huge proportions popped briefly into view on December 7 when the Delhi High Court ordered the Department of Pharmaceuticals (DoP) and other parties to fix and label the maximum retail price (MRP) of every cardiac stent, used for angioplasties, sold in India.