Select three of the following U.S. border entry points:

• New York via commercial airplane
• Seattle via mass transit ferry or cruise ship
• San Diego via pedestrian walkway

Compare the security practices used for the three modes of transportation.

Create a table that includes the following information:

• Explain existing border threats and the challenges that border security personnel have when securing these borders.

Format your assignment consistent with APA guidelines by including a reference page with three to five sources.