List out various facts that ensure that robots are designed to prioritise human safety and ethics.

The following facts ensure that robots are designed to prioritise human safety and ethical behaviour:

1. A robot may not injure a human being or, through inaction, allow a human being to come to harm. This law gives the highest priority to human safety.
2. A robot must obey the orders given to it by human beings, except where such orders would conflict with the First Law. This ensures that ethical behaviour is maintained while following human instructions.
3. Robots are designed with safety features, such as sensors, which help them detect humans and obstacles and prevent accidents.
4. Robots are used to work in hazardous environments, such as nuclear plants and disaster areas, to reduce risk to human life.
5. Robots can perform dangerous tasks involving sharp objects or extreme temperatures, thereby ensuring the safety of humans.