Book #5 in the Pandora Initiative series.
"After CIA agent John Seal's journey as a stowaway on a Chinese freighter ends, setting foot on his native soil, Seal has one thing to live for - revenge. Broke and alone, Seal uses his survival skills to make his way across the country with damning evidence that implicates deep-seated government officials are involved with a global mercenary funding a weapon of mass destruction. Struggling to remain undetected by rail yard security, he escapes a series of attacks by bloodless human smugglers and works to avoid a daunting specter from his past."