Federated Identification, Legal Papers, and Transgender IDs
http://ts-si.org/content/view/3253/995/6/7/2008
"One of the unintended consequences of the September 2001 attacks on
the World Trade Center and the Pentagon was the decision by the United
States Federal Government to develop a federated digital identity
system to serve as the root identifier for everyone living within the
US. Prior to 9/11 each state had established its own rules and
documentation requirements for issuance of state driver's licenses
which, by the late twentieth century, had become the commonplace
public medium for personal identification."
