We should be feeling safer right now. British officials appear to have foiled a plot to blow up as many as 10 U.S.-bound passenger jets with liquid explosives hidden in carry-on luggage. Another batch of alleged operatives has been discovered and taken out of commission. Several thousand men, women and children did not die ghastly deaths over the Atlantic Ocean. "This," said Republican Congressman Christopher Shays when the arrests of 24 suspects was announced last week, "was a good day."
Then why did it feel so bad? Why did a bullet dodged feel like the beginning of something and not the...