Dr. William J. Walsh is president and chief scientist of Walsh Research Institute in Illinois. His varied career began as a nuclear scientist including top-secret hydrogen bomb development at Savannah River and plutonium research at Los Alamos. Disillusioned with weapons research, he pursued nuclear fuels reprocessing, lithium battery development, energy/environmental sciences, forensics, and the biochemistry of criminal violence, ADHD, autism, depression, bipolar disorder, and schizophrenia. His present interests include epigenetics, neuroscience, global DNA methylation, and approaches for protecting DNA.