Durango Taillight Covers

I drive a Dodge product and want to look for Mopar parts for it. I want some taillight covers for my SUV. Living out in the country, I see it frequently around here. I like the way they look but I wasn't sure about how it would affect the person driving behind me. Does it inhibit his or her viewing of my brake lights when I use them? I don't want to get rear-ended. Does anybody have taillight covers?