No guards. No lights. No cameras. No alarms. A barbed-wire fence, a gate, a few warning signs and some locks are what guarded several hundred pounds of explosives, enough to blow up a large building. The security measures, which meet federal regulations, are what a thief faced sometime last week when the plastic explosives, 2,500 blasting caps and explosive detonator cords were stolen from a Bernalillo County storage depot. The explosives belonged to Cherry Engineering. The company is owned by Chris Cherry, one of the nation's most respected bomb experts and a Sandia National Laboratories employee. The security measures protecting...