Six American nuclear bombs from the Cold War remain lost and unrecovered, raising lingering questions about national security vulnerabilities that President Trump's administration must address to safeguard our sovereignty.Cold War Accidents Exposed Nuclear RisksThe U.S. Air Force and Navy lost six nuclear weapons in...

Because the dollar sign appeared in ledgers before the United States was a fully formed nation, historians have had to piece together its ancestry through a series of intriguing, if sometimes flawed, hypotheses.1. The Spanish Pillars of HerculesOne of the most visually compelling theories...