Law enforcement official says airline bomb threats not credible

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A string of bomb threats disrupted air traffic Tuesday, and while a law enforcement official says they do not appear credible, it marks the second time in eight days that authorities had to investigate numerous threats against airlines.http://feeds.feedburner.com/~ff/rss/cnn_us?d=yIl2AUoC8zA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=LR6Zuw70hFc:exggHeyoQgw:yIl2AUoC8zA) http://feeds.feedburner.com/~ff/rss/cnn_us?d=7Q72WNTAKBA</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=LR6Zuw70hFc:exggHeyoQgw:7Q72WNTAKBA) http://feeds.feedburner.com/~ff/rss/cnn_us?i=LR6Zuw70hFc:exggHeyoQgw:V_sGLiPBpWU</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=LR6Zuw70hFc:exggHeyoQgw:V_sGLiPBpWU) http://feeds.feedburner.com/~ff/rss/cnn_us?d=qj6IDK7rITs</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=LR6Zuw70hFc:exggHeyoQgw:qj6IDK7rITs) http://feeds.feedburner.com/~ff/rss/cnn_us?i=LR6Zuw70hFc:exggHeyoQgw:gIN9vFwOqvQ</img> (http://rss.cnn.com/~ff/rss/cnn_us?a=LR6Zuw70hFc:exggHeyoQgw:gIN9vFwOqvQ)
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