Western wildfires. costing taxpayers about $33 million. and the fbi is warning exploding targets can be used by criminals and extremists in improvised explosive devices. maryland and california have restrictions on the targets, but in every other state anyone can buy any amount without i.d. or a background check. >> with very little training, with very little expertise, with very little initiative i've been able to create aexplosive. >> reporter: joseph flannery is marylands deputy fire marshal, in his state you need a license to use the targets and they showed us why. one pound of it shredded...