美国有线新闻 CNN 2015-05-30

 The new FBI joint¹ Intelligence Bulletin warned that U.S. military, law enforcement and government instillations and personnel are at increased risk of attack by ISIS. The new warning, first obtained by Fox News and issued before Memorial Day, cautions that ISIS and other terror groups often time their attacks to significant or symbolic² days, to heighten impact. The terror attack in Garland, Texas earlier this month demonstrated the threat from ISIS' supporters hiding within the United States, and communicating directly with ISIS leaders abroad. After the shooting, the security level at every military base across the country increased to Bravo, signifying a(n) increased and predictable threat of terrorism. U.S. bases generally have not been at this level since the tenth anniversary of the 9/11 attack.

 

U.S. law enforcement is particularly concerned about ISIS' aggressive and successful online propaganda campaign. Thousands of people in U.S. have shown interest in ISIS online, and U.S. officials feared that some of them could be inspired to carry out attacks, here.

 

"It is really an expansion of how the Internet has been used frankly³ for several years now, both in recruitment and radicalization of young people to join terrorist groups."

 

Now the man believed to have been in touch with one of the Texas shooters is back online encouraging new supporters. After having previous Twitter account suspended. The British-born ISIS recruiter Junaid Hussain posted his contact information on Twitter for anyone who wants to quote "bake a cake", a well known code phrase for building bombs. 

 

"Groups like ISIL or al-Qaeda now are calling publicly for attacks in the West, of people who they would have never recruited, specifically they have never trained. Someone could decide on their own to answer that call with little or no notice to our intelligence community."

1 joint   

adj.联合的，共同的；n.关节，接合处；v.连接，贴合

参考例句：

• I had a bad fall,which put my shoulder out of joint.我重重地摔了一跤，肩膀脫臼了。
• We wrote a letter in joint names.我们联名写了封信。

2 symbolic   

adj.象征性的，符号的，象征主义的

参考例句：

• It is symbolic of the fighting spirit of modern womanhood.它象征着现代妇女的战斗精神。
• The Christian ceremony of baptism is a symbolic act.基督教的洗礼仪式是一种象征性的做法。

3 frankly   

adv.坦白地，直率地；坦率地说

参考例句：

• To speak frankly, I don't like the idea at all.老实说，我一点也不赞成这个主意。
• Frankly speaking, I'm not opposed to reform.坦率地说，我不反对改革。