HOMER — There’s a mystery in Sheriff Billy Carlton Speed’s backyard. Somehow, the border between two rural Georgia counties abruptly moved behind Speed’s house a few years ago, a curved line that puts ...

Despite federal investments, the Mississippi Congressman said U.S. Customs and Border Protection has faced challenges in the acquisition, maintenance, and deployment of this equipment. Mississippi ...

Poland will shore up another 125 miles of its border with Russia and Belarus with new defenses by the end of the year, according to the country's armed forces. Warsaw's military added fresh defenses ...

Abstract: This paper presents a mobility-aware bivariate line-of-sight (LoS) probability model for millimeter waves and terahertz air-to-ground communication. Current literature does not provide LoS ...