Don't forget, "under God" was not part of the original pledge. It was added in 1954 in an attempt to create a separation of the US from "godless commies". The original pledge was written by Francis Bellamy who later recounted that he wanted it to invoke allegiance, a word meaning loyalty. Be recanting the pledge over and over, you are conditioning loyalty without question. But, if you made it to the bottom of the original post and are not fuming, red-faced, and spitting patriotic epithets at @aggroed, you know that you need to question everything. But why-oh-why would the government want you to not question your loyalty (add snarky intonation)?
*Edit - a source about adding "under god" to the pledge http://www.smithsonianmag.com/history/the-man-who-wrote-the-pledge-of-allegiance-93907224/