barrett brooks and dave spadaro, thank you so much for being with us and for your insight. dave: thanks, rosemary. rosemary: next on nbc10@issue we'll tell you how this disturbing salute is linked to the pledge of allegiance. that and other facts about honoring the flag that may surprise you. rosemary: with so much attention on the way we honor the flag, we decided to ask a local historian for some background on the pledge of allegiance. for example, did you know that the pledge was written to honor christopher columbus's arrival to north america? joining me now is historian, dr. lee arnold. he's the senior director and chief operating officer of the library and collections for the historical society of pennsylvania. dr. arnold, thanks for being with us. lee arnold: glad to be here. thank you. rosemary: so first, let's begin with a big surprise for a lot of people. the original way we saluted the flag. lee: right, so as you mentioned, that the way we saluted the flag was a very common way in the late 1800s, early 1900s, which unfortunately, people refer to as the nazi salute