Perhaps they're worried Americans might stumble upon a labor protest and get some ideas. :think:
..............................
from the LA Times:
WASHINGTON —
The State Department plans to caution Americans traveling in Europe to be vigilant because of heightened concerns about a potential Al Qaeda terrorist attack aimed at U.S. citizens and Europeans.
The travel alert expected to come out Sunday is for travelers' guidance, is general in nature and isn't intended to focus on any specific country, location or tourist sites, senior U.S. officials told The Associated Press. They spoke on condition of anonymity because no formal announcement had been made.
The alert would fall short of a formal travel warning, which could have broader implications including a stronger likelihood of canceled airline and hotel bookings. The alert also isn't intended to urge travelers to stay away from public places. Europeans and some members of the Obama administration had viewed that as an overreaction.
The travel alert is a cumulative result of information the U.S. has received over an extended period, said one official. .......(more)
The complete piece is at:
http://www.latimes.com/news/nationworld/nation/la-naw-terror-threat-20101004,0,5149902.story