The story

The U.S. Coast Guard promised a "thorough review" Friday after a training exercise intended to have been "normal" and "low profile" wound up instead triggering concerns about the security of the president on the anniversary of the September 11 attacks.

"We are going to take a good, hard look at what we did here today and ensure that, if we need to modify procedures, if we need to modify communications, we will do so in the future," Vice Adm. John Currier of the Coast Guard said.

The incident began shortly before 10 a.m., when CNN journalists monitoring video from a Washington TV station saw Coast Guard vessels apparently trying to keep another vessel from passing. Read full article »

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