Transmission of light is the moving of electromagnetic waves (whether visible light, radio waves, ultraviolet, etc.) through a material. This transmission can be reduced, or stopped, when light is reflected off the surface or absorbed by the molecules in the material.
An FBI agent at GS-12 step 5 would earn an annual salary of  $68,993. More experienced agents with longer tenure will have a higher grade and step rating. An agent at GS-14 step 1 would earn $85,544, while an agent on GS-14 step 4 would have an annual salary of $94,097.
The U.S. Bureau of Labor Statistics reports that federal Detectives and Crime Scene Investigators earn an annual average income of $68,820. The lowest-paid 10 percent earn less than $38,850, while the highest-paid 10 percent earn more than $119,320. The biggest factors that influence CIA Agent income are the level of training and the location of the position. For example, an entry-level position as a CIA Agent working at the headquarters in Washington, D.C. pays between $58,511 and $81,204 per year.