阅读下面内容，为下面四句话排序，使得段落完整。 HowhasSeptember11affectedthetraveler?Well,manyofyouarenodoubtfamiliarwiththepracticalchangesthathavecomeaboutafterthebombingsofSeptember11.Thesehaveespeciallyimpactedairtravelers.Airportsecurityismuchtighter.___________________________________ 1.Longlinesarevisibleinsideterminalsandsometimesalongthesidewalksoutsidetheairportbuildings. 2.Inshort,youhavetowaitlongerandinmorelinesthanyouusedto. 3.Accessismuchmorestronglyrestricted. 4.Asaresult,whetheryouareflyingdomesticallyorinternationally,itisnecessarytoarriveatairportsearlierthanyoudidbefore,andmakesurethatallyourdocumentsareinorder.