Herd immunity occurs when enough people in a group are immune to a specific infection that it cannot spread easily from person to person. Vaccination programs have been successful in creating herd ...

When officers commit misconduct during off-duty jobs, some judges are granting them immunity historically reserved for on-duty incidents HOUSTON — Shanita Terrell believes someone spiked her drink the ...

The real legacy of the case, scholars say, is not its protection of former presidents from prosecution but its expansive understanding of presidential power. By Adam Liptak Reporting from Washington ...