You can't use dogs for static defense because they can only stay on task for so long. After 10-15 minutes of bomb sniffing the dog needs to take a break. You wo

You can't use dogs for static defense because they can only stay on task for so long. After 10-15 minutes of bomb sniffing the dog needs to take a break. You would need several dogs (and handlers) per checkpoint, which is cost ineffective.