Most terrorist attacks in the last years have used explosive devices, which have frequently been based on home-made explosives, fabricated from chemicals that are currently widely available to the general public.
Viimastel aastatel toimunud terrorirünnakutes kasutatud lõhkeseadeldised on sageli tehtud isevalmistatavatest lõhkeainetest, mille lähteained on tavakodanikele praegu hõlpsalt kättesaadavad kemikaalid.