By Mariana Martinez &nbsp;&nbsp;&nbsp; Sixty people were arrested after a yearlong investigation linking the Iraqi community at El Cajon with Mexico&rsquo;s most prominent drug cartel, The Sinaloa cartel lead by &ldquo;El Chapo.&rdquo; &nbsp;&nbsp;&nbsp; The arrests came after a long undercover investigation lead by DEA and El Cajon Police Department, called Operation Shadowbox. Authorities still consider [...]