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9/11 10 Years Later
U.S. ramps up security in face of 'credible' 9/11 threat
Barbara Starr, Mike M. Ahlers and Lesa Jansen, CNN
September 9, 2011 11:43 a.m. EDT
Bloomberg: 'Taking threat seriously'
STORY HIGHLIGHTS
NEW: Police checkpoints dot Manhattan streets
NEW: Vice President Joe Biden says primary concern is over "lone actor"
Heightened security is seen in New York, as police search trucks and vans
President Obama is being briefed on the latest developments
link-
http://www.cnn.com/2011/US/09/09/terrorism.threat/index.html?hpt=hp_t1