Fellow Congressman Joe Sestak compares Republican policies to a bag of dog droppings and actually appears in the ad holding a bag.

CNN: Anger, advertising dominate U.S. mid-terms

Thus, a dog may sniff your bag at the airport (and elsewhere) without implicating the Constitution, on the theory that the dog only alerts in the presence of contraband.

CNN: Bad laws would hurt good drones

As well as providing training and equipment, Swansea council will also increase litter and dog fouling patrols as part of the Bag it!

BBC: Dog mess

The man later told police that his dog called attention to a black plastic bag, which he took back to a garden outside his building.

WSJ: Body Parts Found Scattered in Bronx

Many local people have now joined the search for the missing bag as police believe the dog would have abandoned it after finding no food inside it.

BBC: India stray dog 'steals' bag with 400,000 rupees in Bihar

The dog walker told police he moved the first bag because he saw someone circling the block in a Dodge Charger and watching to see what he did with the bag, the law-enforcement source said.

WSJ: Body Parts Found Scattered in Bronx

That was when the dog entered the room and ran off with the bag.

BBC: India stray dog 'steals' bag with 400,000 rupees in Bihar