NEWARK, Ohio (AP) — The U.S. border wall with Mexico is frequently in the news, but few people have a chance to visit it up close, or to see details of the various sections.Kenneth Madsen, an Ohio State University geography professor and border wall expert, hopes his new photo exhibit will help bring the border closer to people at a time of heated discussion about the role of the wall, and of barriers in society overall."Up Close with U.S.-Mexico Border Barriers" opens Wednesday at the LeFevre Art Gallery on the . . .

This June 15, 2017, photo provided by Kenneth Madsen, shows a post-on-rail style of fence along the flood plain of the Colorado River between Arizona and Baja California, which is typical of border wall fences placed in environmentally sensitive areas or in areas prone to flooding. A new photo exhibit by Madsen opening Wednesday, Sept. 19, 2018, at the Ohio State University-Newark campus, "Up Close with U.S.-Mexico Border Barriers,” highlights different types of border wall fencing. (Kenneth Madsen via AP)By ANDREW WELSH-HUGGINS, Associated Press NEWARK, Ohio (AP) &mdash . . .

This June 15, 2017, photo provided by Kenneth Madsen, shows a post-on-rail style of fence along the flood plain of the Colorado River between Arizona and Baja California, which is typical of border wall fences placed in environmentally sensitive areas or in areas prone to flooding. A new photo exhibit by Madsen opening Wednesday, Sept. 19, 2018, at the Ohio State University-Newark campus, "Up Close with U.S.-Mexico Border Barriers,” highlights different types of border wall fencing. (Kenneth Madsen via AP)By ANDREW WELSH-HUGGINS, Associated Press NEWARK, Ohio (AP) &mdash . . .