ST-6 was placed on permanent alert to respond to terrorist attacks against American targets worldwide.

海豹6队时刻的防范着以美国为目标的恐怖行动并随时准备应对其对全世界目标的反击。

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The U.S.State Department has issued a fresh travel alert for India, saying the U.S.government continues to receive information that terrorist groups may be planning attacks here.

VOA: standard.2009.10.30

An Ashcroft aide acknowledged the terrorist alert issued Friday was one of several factors in the decision to cancel the trip.

CNN: Sources: al Qaeda linked to bank threat

On October 11, the FBI issued an alert warning of possible terrorist attacks on American soil or against U.S. international interests.

CNN: Americans urged to carry on despite terror alert

The US Marine Corps in Okinawa went on maximum alert following the suspected terrorist attacks in New York and Washington, the Kyodo news agency said quoting a US military official.

BBC: Security alerts spread from US