Awakening In Nineveh

God was pleased to use Jonah's preaching unto the effecting of a widespread awakening amongst the people of Nineveh. It even reached into the halls of government. The nature of true repentance is illustrated in Nineveh's repentance. Yet awakening and its influences did not last in Nineveh. Just over a century later Nahum prophesied, "There is no relief for your breakdown, your wound is incurable. Behold I am against you." Nineveh went from sweeping awakening to irreversible decline in just over a century. Has that pattern been replicated in the American Nineveh?