No, no, not on our border with Mexico, but on Israel’s border with Egypt:
The new border fence, about 15 feet high, is the most tangible sign of Israel’s growing unease about the upheaval in Egypt, which has aggravated shaky security conditions in the Sinai Peninsula bordering Israel. Israeli concerns were heightened in August when gunmen who crossed from Sinai struck on the border road north of Eilat, leaving eight Israelis dead.
That attack led to the acceleration of work on the border fence, which, when complete, will run about 140 miles from Israel’s border with the Gaza Strip south to the Eilat area. Originally intended as an obstacle to the thousands of African migrants and asylum seekers who sneak across the frontier annually, the barrier is increasingly seen as a bulwark against security threats emanating from Sinai.