Border Security: America's Front Line

Border Security: America's Front Line

Go behind the scenes at the United States Customs and Border Protection agency.

12:30 AM on Global - Network

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Border Security: America's Front Line

Go behind the scenes at the United States Customs and Border Protection agency.

6:00 AM on National Geographic Canada

Select your lineup for TV local listings

Border Security: America's Front Line

Go behind the scenes at the United States Customs and Border Protection agency.

6:30 AM on National Geographic Canada

Select your lineup for TV local listings

Border Security: America's Front Line

Go behind the scenes at the United States Customs and Border Protection agency.

7:00 AM on DTOUR

Select your lineup for TV local listings

Border Security: America's Front Line

Go behind the scenes at the United States Customs and Border Protection agency.

7:00 AM on National Geographic Canada

Select your lineup for TV local listings

Border Security: America's Front Line

Go behind the scenes at the United States Customs and Border Protection agency.

7:30 AM on DTOUR

Select your lineup for TV local listings

Border Security: America's Front Line

Go behind the scenes at the United States Customs and Border Protection agency.

7:30 AM on National Geographic Canada

Select your lineup for TV local listings

Border Security: America's Front Line

Go behind the scenes at the United States Customs and Border Protection agency.

12:00 PM on DTOUR

Select your lineup for TV local listings

Border Security: America's Front Line

Go behind the scenes at the United States Customs and Border Protection agency.

12:00 PM on National Geographic Canada

Select your lineup for TV local listings

Border Security: America's Front Line

Go behind the scenes at the United States Customs and Border Protection agency.

12:30 PM on DTOUR

Select your lineup for TV local listings