Editing Bojinka plot (section)

===Bomb===

The "Mark II microbombs" had [[Casio]] digital watches as the timers, stabilizers that looked like cotton wool balls, and an undetectable quantity of [[nitroglycerin]] as the explosive. Other ingredients included [[glycerin]], [[nitrate]], [[sulfuric acid]], and minute concentrations of [[nitrobenzene]], [[silver azide]] (silver trinitride), and liquid [[acetone]]. Two 9-volt [[Battery (electricity)|batteries]] in each bomb were used as a power source. The batteries would be connected to light bulb filaments that would detonate the bomb. Murad and Yousef wired an [[Silicon controlled rectifier|SCR]] (silicon controlled rectifier) as the switch to trigger the filaments to detonate the bomb. There was an external socket hidden when the wires were pushed under the watch base as the bomber would wear it. The alteration was so small that the watch could still be worn in a normal manner.<ref name="brzezinski-bombshell"/><ref name="jenkins-terrorism">{{Cite news |last=Jenkins |first=Brian |date=May 13, 1996 |title=Terrorism trial begins in New York |url=http://edition.cnn.com/US/9605/12/terror.plot/ |archive-url=https://web.archive.org/web/20240506181605/http://edition.cnn.com/US/9605/12/terror.plot/ |archive-date=May 6, 2024 |access-date=July 30, 2024 |work=CNN}}</ref><ref name="lance-thousand">{{Cite book |last=Lance |first=Peter |title=1000 Years for Revenge: International Terrorism and the FBI—the Untold Story |publisher=William Morrow and Company |year=2003 |isbn=978-0060543549 |edition=1st |location=New York}}</ref>

Yousef got batteries past airport security during his December 11 test bombing of [[Philippine Airlines Flight 434]] by hiding them in hollowed-out heels of his shoes. Yousef smuggled the nitroglycerin on board by putting it inside a small container, reputedly containing [[contact lens]] cleaning solution.<ref>{{Cite episode |title=Bomb on Board |series=Mayday |series-link=Mayday (Canadian TV series) |network=[[Discovery Channel Canada]] / [[National Geographic Channel]] |date=12 October 2005 |season=3 |number=5}}</ref>