Tuesday assorted links

1. The Islamic argument for competence.

2. Worry claims about Egypt and Israel.

3. PEPFAR will distribute Gilead’s new anti-HIV drug.

4. A quick U.S. geography lesson.

5. Results from Italian experiments with tenure.

6. New results on the fiscal impact of immigration.

7. Observations on redistricting (New Yorker).

8. Desalination on the march.

9. New results on TRAPPIST-1e.  Only about forty light years away.