Burden of Proof is a fast paced conspiracy thriller,  featuring CIA Research Analyst Natalie Spinster.  The plot is as follows:  In 2001, after seven innocent Americans open their mail, they die from inhaling deadly doses of the Thorax Toxin.  The U.S. Government instantly labels the attacks as biological warfare from abroad.  The Thorax Terror becomes the leading catalyst for U.S. entry into a controversial war in the Middle East.

Flash forward to 2007.  Americans have grown tired of the war and distrust the current administration.  When nine Washington D.C. power players decide to cover up the truth behind the Thorax Terror, it becomes a race against tiem to unearth a government conspiracy so lethal it could shake the very foundations of the American democratic system.