The development and deployment of small tactical nuclear weapons have been proposed during an ongoing review of U.S. nuclear policy by the administration of President Donald Trump, a congressional source said Sunday.Adoption of the proposal would mark a major departure from the previous administration of President Barack Obama that sought "a world without nuclear weapons."Tactical nuclear weapons of several kilotons are seen as usable as their destructive power is limited compared with conventional nuclear weapons. But it remains uncertain whether Washington will employ such an option, give…READ FULL ARTICLE