Add Yahoo as a preferred source to see more of our stories on Google. The United States has officially instated a sweeping new travel rule that requires all non-U.S. citizens — including Canadians — ...

Federal officials awarded a $1.28 billion border wall project in Southern Arizona to a company favored by President Trump, five months after a previous contract led to accusations of improper ...

An inherent principle of publication is that others should be able to replicate and build upon the authors' published claims. A condition of publication in a Nature Portfolio journal is that authors ...

Border conflict has roots in colonial maps and long-standing ‘sibling rivalry’ Thailand and Cambodia have been locked in a border dispute for more than a century, which exploded again in the summer of ...