HIJACK

[verb] [T] - to force someone to give you control of (a vehicle, aircraft or ship that is in the middle of a journey)A man armed with a pistol hijacked a jet that was travelling to Paris early today and demanded payment of $125 000.400 tons of food was stolen when a convoy of trucks was hijacked in the famine-hit town.If a person or group of people hijacks someone else's ideas or plans, they start to use them as their own.Many Green Party members resent the way in which other political parties have hijacked environmental issues that they originally publicized.