[Shabelle] The collapse of U.S. confidence in President Hassan Sheikh Mohamud didn't come with a press release. It came with a leak--a cold, calculated release of a private letter from the Somali president to the U.S. President Donald J. Trump. The letter itself was unremarkable, but its disclosure was anything but accidental. It was a warning. Widely interpreted as a deliberate act of dissent from within the U.S. Embassy in Mogadishu, the leak signaled the end of Washington's patience with Mohamud's leadership--a