Why guns should be legal:

In some countries, people are allowed to own firearms
Individuals have the right to protect themselves
People can use guns in self defence
This deters criminals

Why gun ownership should be illegal:

There is a risk of accidents with guns
The number of violent crimes increases when guns are available
Criminals may be armed
The police then need to use guns
Suicide rates have been shown to rise when guns are available
Guns create violent societies with high murder rates

Why polices should use guns

Many criminals use weapons
The threat of a gun can deter criminals
Police officers can forces a criminal to surrender
It is easier to arrest someone and avoid physical violence
The police may shoot violent criminals in self defence
They can protect the public
They can shoot an escaping criminal who poses a serious danger to the public

Why police should not carry guns

There is a risk of accidents and mistakes
The police might shoot an unarmed criminal or an innocent person
Accidents can happen in public places
There are several alternatives to guns (e.g tear gas, sprays and electric shock weapons)
Only special police units should use guns

Arm Trade: Positives

The export of arms, or weapons, is an extremely controversial issue
Governments of rich, industrialized countries sell arms to each other
This industry creates jobs and wealth
The trade of weapons may improve relationships between governments

Arms Trade: Negatives

Weapons may be used in conflicts and wars
The supply of arms could be responsible for deaths
Governments are promoting war in order to make a profit
Rich countries can influence the politics of other nations

Nuclear weapons

Nuclear weapons are capable of destroying whole cities
A nuclear war between two countries would destroy both countries
Nuclear weapons are used as a deterrent
They prevent wars from starting

Nuclear weapons: Opinion

Nuclear weapons should be prohibited
Governments should limit the production of nuclear weapons
There is a danger of nuclear weapons being obtained by terrorists
Nuclear weapons cannot be used against terrorist organizations

Armed Forces: Positives

Armed forces provide security and protection
They deter military attack by another country
They can also be sued to maintain peace within countries
They can be sued to give the police extra support
Soldiers are also used to help in emergency situations, such as after a natural disaster

Armed forces: negatives

Armies require a lot of funding from governments
Too much money is spent on weapons and military technology
This money could be spent on schools, hospitals and other public services