What is the LDS Church's affiliation with the Boy Scouts?

The LDS church sponsors scouting programs for their boys, and I understand that many LDS young men attain the rank of Eagle, the highest rank in Boy Scouts. Regardless of the possible implications of the imminent decision of the BSA related to gays in scouts, what is the LDS Church's affiliation with scouting? What religious significance does the Boy Scouts have with Mormon young men? **Update:** The LDS Church recently issued this statement about their partnership with the Boy Scouts . **Another Update:** One more statement by the LDS Church regarding the Boy Scout membership policy decision .