It may be past it's "freshness date". Add in the likelihood that it's been stored in sub optimum conditions and a good chance that it is not the best quality and they are dealing with explosives that are a little touchy, at best. Not something I would want to transport, store or trust to detonate as advertised.
there is hardware, like AKs and small caliber ammo. And as for explosives, well, TNT has unlimited shelf life unless stored in a cesspool. IIRC, about a year ago it was posted on FR that some excremists were caught with a cache containing one or two TNT crates.