By RUSS BYNUM SAVANNAH, Ga. (AP) — The Port of Savannah saw a whopping 20% increase in shipping containers moving across its docks in 2021 as U.S. seaports scrambled to keep up with a surge in cargo that crammed container yards and forced ships to line up and wait at sea. The Georgia Ports Authority reported Tuesday that Savannah's port handled a record 5.6 million container units of imports and exports