cannon en Divers search for 18th century cannon in Detroit River <p>Divers took to the Detroit River to try and bring up a long-submerged cannon Wednesday.</p><p>Detroit Police Underwater Recovery Team divers discovered the Revolutionary War-era cannon in July. It&rsquo;s the fifth such cannon pulled out of the river since the 1980s.</p><p>Detroit Police say a British vessel capsized leaving Fort Detroit in 1796, losing five cannons.</p> Wed, 07 Sep 2011 23:14:27 +0000 Sarah Cwiek 4069 at