Why is it wrong for nations to spy on each other? That is a practice that has occurred throughout recorded history. Espionage gives nations early warning when they are about to be invaded, or when treaties are being violated, or when gross violations of human rights are occurring.
The problem is when the spying extends beyond governments and starts covering civilian populations. When surveillance is conducted against the general population, when the government of one nation uses its surveillance systems to engage in industrial espionage on behalf of domestic businesses, when spying is used to subvert democratic processes, that is when we start to have problems.
The problem is when the spying extends beyond governments and starts covering civilian populations. When surveillance is conducted against the general population, when the government of one nation uses its surveillance systems to engage in industrial espionage on behalf of domestic businesses, when spying is used to subvert democratic processes, that is when we start to have problems.