The U.S. has paused all pending immigration applications from 19 "countries of concern," meaning that even applicants with pending green card applications are on hold.

The Department of State has issued its highest travel warning for this South American country due to threat of unlawful detainment and kidnapping.

As solo travel continues to dominate the tourism industry with millennials and Generation Z leading the charge, new research has uncovered alarming safety disparities across United States destinations for those venturing alone.