Wirelessly posted (Apple iPhone: Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)
One hour is quite common at MIA and JFK. The handlers at JFK are outsourced/subcontracted; not sure about MIA.
The worst at MIA is when you have an onward connection and checked bags! A big reason why I haven't checked any bags on AA in over four years. It's just not worth the pain of waiting.