The recent outpouring of sexual harassment and assault allegations has helped expose not only high-profile predators, but the culture of secrecy that shielded them. Now lawmakers and advocates want to empower victims, and make it harder for serial harassers to hide, by restricting the use of nondisclosure agreements, the confidentiality provisions that obscured decades of complaints against Harvey Weinstein, Bill O’Reilly, and Roger Ailes by muzzling their accusers.