A time for vigilance — and thanks for all that we have By Kelly Hockenberry, Columnist, The Times Two years ago, my husband and I were in Paris celebrating our 20th wedding anniversary. It was a dream of mine to see the Eiffel Tower and stroll along the Champs Elysee. The city was so beautiful and, contrary to the rumors suggesting otherwise, the French people were very friendly. We marveled at the...