An engineer crouches under a park bench as fighter jets roar overhead. An athlete wracked by anxiety can’t sleep as explosions go off. Two weeks of fierce U.S.-Israeli bombardment of Iran’s capital, Tehran, has left residents in a state of shock. From central historic quarters to upscale northern areas, bombs are shaking the city day and night, with no sirens or warning systems to alert the public. With the internet shut down, families and friends rely on each other for news about the war and the latest damage caused by airstrikes. Residents say security forces have increased their presence in the streets to prevent any shows of dissent. At the same time, the government has encouraged its supporters to gather in street demonstrations.

Legislation to require all aircraft flying around busy airports to have key locator systems to prevent midair collisions failed to win approval in the House on Tuesday. The head of the National Transportation Safety Board said the system that her agency has been recommending since 2008 would have prevented last year’s midair collision near Washington, D.C., that killed 67 people. The bill passed the Senate and had the backing of the victims’ families and key unions. It would require all aircraft to be equipped with a system that can receive data about the locations of other aircraft. The complementary system that broadcasts an aircraft’s location is already required.