To prevent illegal and dangerous activities, like smuggling of drug/weapons/stolen goods, to make sure no one is carrying explosives or weapons that could be used to hijack a plane. Also to prevent damage to people if there is a fight or a scene of some kind.
So over-all they are there to protect the every-day passenger.
For coming to BD and fly from BD
i think Washington Airport
Not all airports are international airports, some are domestic airports.
So you could travel around the world to meet your family or just for a simple vacation. That's what I think :)
Water is not allowed in airports because it can be a security risk. It is possible for liquids to be used to conceal dangerous substances, so airports have restrictions on bringing liquids through security checkpoints.
to know if it is clear for the planes to go by: Katrina
so we can get to difrent continents
Water is not allowed in airports because it can be a security risk. It is difficult to distinguish between harmless water and potentially harmful liquids, so airports restrict liquids to ensure safety.
With very few exceptions, airports are owned by their Governments. Some airports, normally smaller ones, are privately owned. The income from these larger airports goes to their respective Governments. Millions are made each year on landing fees and rental spaces from these airports. The airports are also able to bring in billions in income to hotels and local businesses.
Oklahoma has many airports. The most important (not necessarily in order) are Will Rogers World Airport in Oklahoma City, Tulsa International in Tulsa, Wiley Post Airport, also in OK City and Stillwater Regional Airport.
They are usually only in International Airports as they are to stop drugs going into countries so you should be fairly safe if you are flying domestically.
There are three most important ones, located in Taipei, taichung, and Kaoshiung. There are others but its smaller and less important.