I remember it stands for something, I just can't remember what.
How old are they? If they are more than 10 years old, replace them. Remember to depose of them properly. They is radioactive elements in fire alarms
depends on what the law suit was for there are laws to protect your employment if you report illegal activity or take part in an investigation of such illegal activity by the employer. a little added information may get you a more accurate answer.
