I agree that passengers should not let the terrorists win by being scared away.
However, between us I and my colleagues have flown many times since last Tuesday. There is absolutely no consistency. Some flights warrant complete searches of all carry on luggage and repeated verifications of identity. On others - same carrier, different airport or same route, different carrier - no effort is made to check carry on luggage or identities at all. Some searches are thorough, some cursory. This in Europe and America.
All reasonable people see the need for extra time to be devoted to security and are happy to allow extra time to check in. But they also expect that extra time actually to be devoted to increasing security. As an industry your response appears to be completely shambolic.