If you open up a biology textbook, you'll probably find in the section on Evolution, you'll see the Peppered Moths and Haeckel's embryos and maybe even Darwin's Finch drawings.
The Concern: Not enough beef to convince people. A recent Gallup poll showed a 6% increase in belief of creationism, from Dec 2010 and May 2012. Belief in creationism has been linked to low IQs and utter hypocrisy of modern medicine (I.e flu shots).
[I don't have enough characters to cite the links, just Google it]
The Solution: The fossil record (I.e Homo Erectus), flu shots, Lenski's long term e.coli experiment, Dodd's fruit fly experiment, the new genera over the years, and all the other instances of macro-evolution (Changes at or above the species level in a gene pool)
Remember, don't let Mr.Broun brainwash.