Where is the Camshaft Sensor located?

Never mind. I found it myself. I had to look at the Ford Taurus since they both use similar engines. Everything on the internet kept saying Circuit A Bank 1 was located on the passenger side of the vehicle, which was obviously wrong. All 4 sensors are located on the driver side underneath the air intake hose.

This is a picture I found on another forum but here's where they're located for anybody down the road that is looking for them.

Going from left to right, Bank 2 is on the left side of the picture, Circuit B then A. Bank 1 is on the right, Circuit A then B.

What I don't understand is in the other picture I attached, what could cause the sensor to be as damaged as that is. Does concern me that there's an underlying issue and worry now there's debris in the camshaft area.