Today Mr Ivet came into yr 5 to discuss drone technology. I found out drones can display many purpose.

drone purpose
tall buiding safety checks 
film making
shark spotting
diliver pizza
rescue people
farmers can use to herd cattle
google maps
real estate photos

Disavantages
-can disrupt air space
-invade privacy
-can break/pollute 
-aggravate wildlife
-can be dangerous