Tremble in safety

I'm not sure if I should be afraid:

FBI investigators have made new arrests and developed leads that reinforce concerns that terrorists plan to strike around the presidential election, officials said Saturday...

or relieved:

Intelligence officials stress that they continue to receive reports indicating that al Qaeda and its allies would like to mount attacks in the United States close to the Nov. 2 elections, and that such reports have been streaming in since terrorists blew up commuter trains in Madrid days before Spanish elections in March. Yet after hundreds of interviews, scores of immigration arrests and other preventive measures, law enforcement officials say they have been unable to detect signs of an ongoing plot in the United States, nor have they identified specific targets, dates or methods that might be used in one.

"We've not unearthed anything that would add any credence to talk of an election-related attack," said one senior FBI counterterrorism official, who spoke on the condition of anonymity because authorities have been instructed not to talk publicly about the issue before the elections. "You can never say there is not a threat, but we have not found specific evidence of one."