 His book, "Why Is Your Country at War", which criticized the US' entry into the first World War, was seized by federal agents under the [[Comstock Act]].It was later posthumously reprinted and issued in 1934, under the title "Your Country at War, and What Happens to You After a War".Lindbergh's mother was a chemistry teacher at [[Cass Technical High School]] in Detroit and later at [[Little Falls, Minnesota|Little Falls High School]], from which her son graduated on , 1918.