 By Arshad Mohammed Reuters - An Iranian American imprisoned in Iran for more than seven years on spying charges that the United States rejects as baseless appealed to U.S. President Joe Biden on Monday to bring him home and said he was starting a seven-day hunger strike. Siamak Namazi made the plea in a letter to Biden seven years to the day that Iran released five other U.S. citizens in a prisoner exchange choreographed to coincide with the implementation of the 2015 Iran nuclear deal. When... 