Former British explosives expert Chris Hunter weighs in on the deadly blasts at the Boston Marathon, commenting that both bombs “had white smoke and that's 100 percent indicative of a low explosive ..

Blast It All I've heard of high explosives, but is there such a thing as a low explosive? —C-W All too often, explosives enthusiasts fall prey to the bigger-is-better mentality. It's refreshing to see ...

In Christmas Day 2009, a 23-year-old Nigerian student named Umar Farouk Abdulmutallab boarded Detroit-bound Northwest Airlines flight 253 in Nigeria with more than 80 grams of the plastic explosive ...