 In 2003 Callahan was reported to have obtained all three degrees on her government resume—her bachelor's, master's, and doctoral degrees—from Hamilton University, a diploma mill in Wyoming.Furthermore, she allegedly paid to have all three degrees backdated to 1993, 1995, and 2000, respectively.Callahan was placed on paid administrative leave in June 2003, but continued to draw a six-figure DHS salary until her resignation on March 26, 2004.