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Energy: The attack on a Saudi oil compound over the weekend drives home a key fact: At the start of the 21st century, the U.S. is critically dependent for its energy needs on unstable overseas suppliers.
That dependency has only grown, as the chart with this column shows. Today, we get roughly half of all our oil from other countries.
Many of the world's most troubled nations -- Algeria, the former Soviet republics, Colombia, Indonesia, Iran, Iraq, Libya, Nigeria, Sudan, Venezuela -- are also some of the biggest oil producers. Delivery of the 80 million barrels of oil the world -- and the U.S. -- needs each day hangs by a very slender geopolitical thread.
Should that thread snap, it could mean big trouble.
The Department of Energy estimates a rise of 10% in the price of oil cuts U.S. GDP growth by roughly 0.1 percentage point. Based on that, the 38% rise in oil prices over the past year has cost the economy roughly $46 billion in lost output.
In the event of a real disruption, oil's price -- and its economic costs -- could soar.
But we can take steps right now to boost our energy independence. We've argued here before that we are only hurting ourselves by not exploiting our own sources of oil and other energy to their fullest. Here are a few ideas: