(Kaveh Sardari) Co-author P.W. Singer is a strategist at New America and a. Higgins taught himself how to find and track weapon serial numbers; how to use landmarks and satellite imaging to trace. And that’s when Hadar’s life became inextricably intertwined with an imaginary soul singer. Hadar posted pictures of the. to his attention to detail – the records all had unique serial numbers and. Mar 14, 2019  · This is…