Average weekly use of nitroglycerin tablets to fight chest pain fell from 55 to two in the same period.

BBC: Scientists 'wake' heart muscle

Greg Bower(ph), of the International Association of Bomb Technicians and Investigators, says nitroglycerin is usually too unstable to handle safely.

NPR: It's Hard to Spot a Liquid Threat to Airline Safety

Also, all of the drugs can be fatal if ingested by patients who also take nitrates or nitroglycerin for heart ailments.

FORBES: Technology

"This finding may affect the relevance of trials involving cardiac, circulatory and neurologic disorders that are treated with nitroglycerin or nitric oxide-dependent therapies, " they said.

CNN: Growth of clinical trial outsourcing raises issues

Add to this the fact that the track is in the middle of Ferrari's Italian home turf, and you have a mix as explosive as nitroglycerin.

FORBES: Just the ticket.

For example, they said, some 40 percent of people of East Asian origin have a genetic trait that impairs ethanol metabolism and limits response to nitroglycerin treatment.

CNN: Growth of clinical trial outsourcing raises issues

Mr. GREG BOWER (International Association of Bomb Technicians and Investigators): For nitroglycerin to be transportable, it has to be kept very cold, not freezing, but very col.

NPR: It's Hard to Spot a Liquid Threat to Airline Safety

That's when they learned about a plot in the Philippines to plant bombs on 11 airliners bound for the U.S. The plotters apparently wanted to use liquid nitroglycerin.

NPR: It's Hard to Spot a Liquid Threat to Airline Safety