By LEILY NIKOUNAZAR U.S. airstrikes targeting parts of southern Iran rattled Iranians’ nerves last week, they said in interviews, and destroyed key links between one province and the rest of the country. Marzieh, a resident of the port city of Bandar Abbas, said that she had heard from friends that the roads around the city had been “devastated.” Marzieh and other Iranians interviewed gave only their first names for fear of government reprisal. Overnight strikes damaged a tunnel and three…