Have you ever looked inside an unsmoked cigarette?

Yesterday, after lighting a Marlboro cigarette, my wife said, “I smell paper burning”. We both searched around and found nothing. She then located the source of the smell. It was my Marlboro cigarette. Being a suspicious person, I gently unrolled the contents from a new Marlboro cigarette, in order to examine its contents. I discovered some light brown colored specs, which appeared to be brown confetti paper. Not having a microscope has hindered me in my investigation of “fillers” for Marlboro cigarettes. I suspect the burning paper, my wife was smelling, was the brown confetti paper specs in my Marlboro cigarette. Question: have you ever been suspicious of the contents in your cigarettes? We all know about the chemicals, but do cigarettes now contain brown confetti papers as “fillers”? Please check one out for yourself and see what you find and advise us.