Roger Cohen thinks so:

I don't doubt the patriotism of the Americans involved in keeping the country safe, nor do I discount the threat, but I am sure of this: The unfettered growth of the Department of Homeland Security and the T.S.A. represent a greater long-term threat to the prosperity, character and wellbeing of the United States than a few madmen in the valleys of Waziristan or the voids of Yemen.

America is a nation of openness, boldness and risk-taking. Close this nation, cow it, constrict it and you unravel its magic.

[...]

Intelligence has improved beyond measure since 9/11. It can be used far more effectively at airports. Instead of humiliating everyone, focus on the very small proportion of travelers who might present a threat.

You can't talk down fear simply by calling terrorists "violent extremists," or getting rid of the color-coded terrorism alert system, as the Obama administration has done. During the Bosnian war, besieged Sarajevans had a word - "inat" - for the contempt-cum-spite they showed barbarous gunners on the hills by dressing and carrying on as normal. Inat is what Americans should show the jihadist cave-dwellers.