Sirna already has a collaboration with Allergan for its lead compound, a drug to treat age-related macular degeneration, a leading cause of blindness.

FORBES: Magazine Article

Sirna already has a collaboration with Allergan (nyse: AGN - news - people ) for its lead compound, a drug to treat age-related macular degeneration, a leading cause of blindness.

FORBES: Inside Merck's Biotech Buy

Yes that's right, the base metal element lead, Pb, or more exactly the lead-based chemical compound Pb(CH2CH3)4 added to petrol to make car engines run more smoothly.

BBC: Does lead poisoning make you violent?

In August 2010, CIA Director Leon Panetta went to the White House to brief the president and a handful of his top national security advisers, including Brennan, that the CIA had a promising lead that suggested bin Laden could be living in a compound in the northern city of Abbottabad.

CNN: John Brennan, Obama's counterterrorist