Europe has survived terrorist attacks before

LONDONIn the more than two weeks that have passed since the murder of more than a dozen people in Paris — cartoonists, policemen, customers at a Jewish grocery store — a number of European countries have called for new countermeasures to fight terrorism. The French prime minister announced a whole raft of policies. The British want databases to monitor travel in and out of Europe. At emergency meetings, European officials have discussed what one British paper called a “new era of travel surve...