The U.S. currently has regulations banning passengers from bringing on board any containers with more than 3 fluid ounces of any liquid or gel. That includes toothpaste containers.
Officials are not aware of any specific threat involving toothpaste tubes, a federal terrorism official told CBS News.
"To make people aware is a good thing," the source said.
"Technically, toothpaste tubes could be used to conceal bomb-making ingredients, just like printer cartridges or a shoe. This may be the new hot item," the source said.
While Russia says it has established a "ring of steel" around the Olympic venues, there have been widespread concerns that Muslim militants from the Caucasus could attack the games. Some U.S. athletes have said they have asked their families to stay home.
Russian authorities have issued wanted posters for so-called "black widows," women whose husbands, brothers or fathers have been killed by Russian security forces and may be seeking revenge.
Russian security services have waged a take-no-prisoners assault in Dagestan, just a few hundred miles from Sochi. Dagestan, along with neighboring Chechnya, is home to an Islamic insurgency that has been battling Russian forces for years.
It's where Tamerlan Tsarnaev lived for months before authorities say he and his brother launched a bomb attack on the Boston Marathon last April.
The State Department has advised Americans traveling to the Olympics to "remain attentive regarding their personal security at all times."
【美国警告称恐怖分子或对索契冬奥会发动“牙膏炸弹”袭击】相关文章:
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