Answer:
1. He has not developed the idea yet
2. His employer knows he his a pacifist so he has the delima is he ethically correct to not develop a product that can be used for warfare.
Step-by-step explanation:
In this scenario Ben signed an agreement with his employer that all ideas he has developed on the job and while working with the company is a property of the company.
This is a common agreement that gives a company property rights over work developed by their employees.
However since Ben is a pacifist he has an ethical dilemma when he has an idea that can weaponize an ultrasonic range-finding device.
He is justifying his decision by saying the idea has not been developed yet and his employer will not expect him to develop such technology since he is a pacifist.