Describe the U.S. land borders. How are they surveilled and protected?

Describe the U.S. land borders. How are they surveilled and protected? (Be specific.) Describe how terrorists from groups besides ISIS penetrate the U.S.–Mexican border. In your responses, discuss the use of modern technology and man-made physical structures—their advantages/disadvantages—and the use of military forces (how, when). Land border security is a crucial part of protecting our country and citizens from harm. The Homeland Security mission is to improve border security by preparing DHS to have the capability