Security rarely objects to a plant, but customs and agriculture inspectors do. Within the US, live plants, cut flowers and seeds fly in either bag, with Hawaii and the territories as the exceptions that inspect on departure. Internationally, almost every country restricts soil, fresh produce and untreated wood, and many ban seeds without a permit.Animal products follow the same pattern: leather, wool and shells are fine, while meat, dairy, honey and anything from a protected species is checked at the border. Each item page below separates the security verdict from the customs one.