h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

I'm looking for information on Secretary of Defense Melvin Laird's late December 1971 announcement that there would be no draft call the first three months of 1972. In particular, how many of us used that announcement to avoid the draft. The law at the time was that you could only be drafted in one calendar year. To close the loop hole of potential draftees giving up deferments, like student deferments, at the end of a calendar year when the draft board would not be able to process the paper work in time for you to be called that year, those who became eligible during the last three months of a calendar year were put into a three month extension group the following years so that they could be called. By announcing, near the end of December 1971, that there would be no draft call the first three months in 1972, many of us were able to be removed from the draft pool on April 1st 1972 after being in the pool those first three months when, as promised, there was no call. I'm looking for any related articles.