Three orphans head for the US, unknowingly carrying important evidence pointing to the existence of a corrupt international cartel, which has just murdered their father.
Also, by driving Romeo's lowrider they are unknowingly carrying an illegal cache of weapons.
My dad and mom had each unknowingly carried a recessive gene that appears in only one in two hundred thousand people.
While the girls assumed they were helping their "boyfriends" pass drugs, they were unknowingly carrying explosives.
When spring arrived, the Italian merchants fled on their ships, unknowingly carrying the Black Death.
Poultry workers at these facilities may be spreading bed bugs, unknowingly carrying them to their places of residence and elsewhere after leaving work.
Or maybe a family member unknowingly carries on nightly conversations.
The speed and volume of international travel mean people can unknowingly carry diseases all over the world even before the incubation period is up.
It could be that there is one Devil and many who unknowingly carry their God within them.
These risks are greater in women who unknowingly carry the A-T gene, which substantially increases risks from radiation cancer.