"A Careless Word, A Needless Loss" US World War II propaganda poster, warning against the disclosure of information that might lead to unnecessary deaths.
Anton Otto Fischer / Office of War Information
<a rel="nofollow" class="external free" href="http://library.marshallfoundation.org/posters/admin/poster_edit.php?poster=426">http://library.marshallfoundation.org/posters/admin/poster_edit.php?poster=426</a>