No. All airplanes can't carry weapons but some airplanes can carry weapons. If it is a military aircraft so yes they can carry weapons but if it is a friendly aircraft so no they cannot carry weapons.
people carry weapons for protection
Yes, airplanes can carry weapons. That's quite true that some airplanes can really carry weapons.
No. Friendly airplanes are civilian aircraft, civilian aircraft do not carry weapons at all, they just carry passengers and items.
No, drummer boys of the civil war did not carry weapons. All they did is drum.
The space shuttle doesn't carry weapons.
In general, we live in a peaceful society in which it is not necessary for people to carry weapons, whether concealed or displayed. However, depending upon a person's specific circumstances, it is sometimes useful to carry weapons and sometimes useful to carry concealed weapons.
Yes.
Their clothing.
Yes.
The only Transportation Security Administration (TSA) employees who carry weapons are Federal Air Marshals.
In states where concealed weapons permits are issued, private investigators can carry weapons (if they have the permit). Also, in some states if you are a retired or active peace officer you can carry a gun with the proper endorsement.