Idunno, they're fairly competent. Not all WW1 or WW2 bombs can be disarmed, sometimes the trigger is too sensitive or can't be safely disarmed. Sometimes the be

Idunno, they're fairly competent. Not all WW1 or WW2 bombs can be disarmed, sometimes the trigger is too sensitive or can't be safely disarmed. Sometimes the best call is to detonate the bomb when you know it's going to blow rather then when you don't. We had a rather large bomb (3.8t) the previous year in my city, a large radius (1.5km) was evacuated and the disposal team went in (opting to forgoe the protective gear as the bomb was too large anyway) and successfully disarmed it. It's simply pure luck.