[9급 국가직 영어 2023년 18번]

They installed video cameras at places known for illegal crossings, and put live video feeds from the cameras on a Web site.

Immigration reform is a political minefield. ( ① ) About the only aspect of immigration policy that commands broad political support is the resolve to secure the U.S. border with Mexico to limit the flow of illegal immigrants. ( ② ) Texas sheriffs recently developed a novel use of the Internet to help them keep watch on the border. ( ③ ) Citizens who want to help monitor the border can go online and serve as “virtual Texas deputies.” ( ④ ) If they see anyone trying to cross the border, they send a report to the sheriff’s office, which follows up, sometimes with the help of the U.S. Border Patrol.