Originally Posted by
polonius
According to today's newspaper, 80g of PETN would "level a house". Based on that, I think it's safe to assume that less than 10g would be sufficient to bring down an airplane.
The question is, why is this stuff available at all? How does it enter the supply chain? Is it mixed in laboratories (I doubt it - too many volatile precursors in the process I mapped out for a laugh).