This roundup of research focuses on border barriers -- what they are, why they have become popular, whether they actually help countries control their borders and how they impact the environment and local communities.
A new study suggests serious sports fans are likely to show strong support for the military. The finding may help explain why some Americans react negatively to athletes kneeling during the national anthem.
Journalists rely on three types of research papers most often in their work: White papers, working papers and peer-reviewed journal articles. We explain each, pointing out its strengths and weaknesses.