Glen Carey reports in Bloomberg:
From a new stone tower on the border with Yemen, Saudi soldiers send out patrols in search of smugglers carrying drugs or weapons. They’re also trying to turn back a growing wave of illegal migrants drawn to the biggest economy in an Arab world rocked by political turmoil.
Dozens of observation points have gone up in the past 12 months in the southern province of Jazan, along the 1,100-mile (1,800 kilometer) border with Yemen. In the al-Arda district there are 20, some positioned on mountain ridges, others yards from where Yemenis herd goats through sandy scrub-patched land.