gold laundering
... that the Swiss National Bank engaged in gold laundering during World War II, transferring Nazi gold through a network of central banks?
... that the <a href="./Swiss_National_Bank" id="mwCYw" rel="mw:WikiLink" title="Swiss National Bank">Swiss National Bank</a> engaged in <b id="mwCY0"><a href="./Gold_laundering" id="mwCY4" rel="mw:WikiLink" title="Gold laundering">gold laundering</a></b> during World War II, transferring <a href="./Nazi_gold" id="mwCY8" rel="mw:WikiLink" title="Nazi gold">Nazi gold</a> through a network of central banks?