America Out Loud PULSE with Dr. Randall Bock – Autism diagnoses have soared from rare to routine, sparking debate over causes—genes, environment, culture, and even shifting school policies. On Independence Day, explore the roots of this surge, from smallpox-era vaccines to modern dilemmas. Are we seeing a true rise or just new labels? Unpack the tangled science, social factors, and unanswered questions...