The biggest problem DEA will face with that is powder that rubbed off during shipment, you don’t want to inhale it. And you need to watch out for “secondary touching”, ie what you do with your hands after you get some on them, get some on your fingers and pick your nose or rub your eyes so it gets to a mucus membrane that can be bad. But it’s not like some falls on your arm and you keel over.
I heard a story about 4 months ago of a policeman (Ohio I think) that got some jacked up powder on his shirt. He touched it later in the day. The dude coded.
Some of the stuff going around is absolutely crazy.