The <a href="https://en.wikipedia.org/wiki/Federal_Bureau_of_Investigation" id="mwkA" rel="mw:WikiLink" title="Federal Bureau of Investigation">Federal Bureau of Investigation</a> (FBI) obtains the conviction of 33 members of a <a href="https://en.wikipedia.org/wiki/Nazi_Germany" id="mwkQ" rel="mw:WikiLink" title="Nazi Germany">German</a> spy ring headed by <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Fritz_Joubert_Duquesne" id="mwkg" rel="mw:WikiLink" title="Fritz Joubert Duquesne">Fritz Joubert Duquesne</a> in the largest espionage case in <a href="https://en.wikipedia.org/wiki/History_of_the_United_States" id="mwkw" rel="mw:WikiLink" title="History of the United States">United States history</a>; Also known as the <a href="https://en.wikipedia.org/wiki/Duquesne_Spy_Ring" id="mwlA" rel="mw:WikiLink" title="Duquesne Spy Ring">Duquesne Spy Ring</a>.<sup about="#mwt87" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-16"}}' id="cite_ref-16" rel="dc:references" typeof="mw:Extension/ref"><a href="./January_2#cite_note-16" id="mwlQ" style="counter-reset: mw-Ref 16;"><span class="mw-reflink-text" id="mwlg">[16]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-16"><cite about="#mwt84" class="citation book cs1" id="CITEREFWalter_Yust1947">Walter Yust (1947). <a class="external text" href="https://books.google.com/books?id=vpAGAQAAIAAJ" id="mwB00" rel="mw:ExtLink nofollow"><i id="mwB04">Ten eventful years: a record of events of the years preceding, including and following World War II, 1937 through 1946</i></a>. Encyclopaedia Britannica. p.<span id="mwB08" typeof="mw:Entity"> </span>317.</cite><span about="#mwt84" class="Z3988" id="mwB1A" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Ten+eventful+years%3A+a+record+of+events+of+the+years+preceding%2C+including+and+following+World+War+II%2C+1937+through+1946&amp;rft.pages=317&amp;rft.pub=Encyclopaedia+Britannica&amp;rft.date=1947&amp;rft.au=Walter+Yust&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DvpAGAQAAIAAJ&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJanuary+2"></span></span>