Among the possible targets in the suspected European terror plot are pre-security areas in at least five major European airports, a law enforcement official told ABC News. Authorities believe terror teams are preparing to mount a commando like attack featuring small units and small firearms modeled after the Mumbai attack two years ago.
The State Department issued a highly unusual "Travel Alert" Sunday for "potential terrorist attacks in Europe," saying U.S. citizens are "reminded of the potential for terrorists to attack public transportation systems and other tourist infrastructure."
One scenario authorities fear is a repeat of the 1985 attack on the Rome and Vienna airports, when Palestinian extremists threw grenades and opened fire on travelers waiting at ticket counters injuring 140 and killing 19, including a small child.
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