PEPFAR has saved 25 million lives around the globe and is considered George W. Bush's greatest achievement. Donald Trump has left its future in doubt.

Opinion: At its best, the presidential pardon power is a tool of mercy, an instrument to correct abuses of power and ...

For the first time in three years, the Bulletin of the Atomic Scientists moved the Doomsday Clock forward by one second.

Seventy-eight years ago, scientists created a unique sort of timepiece — named the Doomsday Clock — as a symbolic attempt to ...

While former presidents George W. Bush and Barack Obama support different parties, that doesn't mean they can't get along.