Toprotectyouandyourfellowpassengers，theTransportationSecurity（安全）Administration（TSA）isrequiredbylawtocheckallcheckedbaggage．Aspartofthisprocess，somebagsareopenedandchecked．Yourbagwasamongthoseselec

　　To protect you and your fellow passengers，the Transportation Security（安全） Administration （TSA） is required by law to check all checked baggage．As part of this process，some bags are opened and checked．Your bag was among those selected for check．

　　During the check，your bag and its contents may have been searched for items forbidden by law such as fireworks，fuels，gunpowder，etc．At the completion of the check，the contents were returned to your bag，which was resealed（重新封口）with a"special"lock．

　　If the TSA screener was unable to open your bag for check because it was locked，the screener may have been forced to break the locks on your bag．TSA sincerely regrets having to do this，and has taken care to reseal your bag upon completion of check．However，TSA is not liable for damage to your locks resulting from this necessary security precaution （预防措施）．

　　For packing tips and other suggestions that may assist you during your next trip，visit：WWW．TSATravelTips．us．

　　We appreciate your understanding and cooperation．If you have questions，comments，or concerns，please feel free to contact the Transportation Security Administration Consumer Response Center：

　　Phone：toll-free at （866）289-9673

　　Email：TellTSA@tas．dot．gov

　　67．The passage is trying to___．

　　A．introduce one of the security acts

　　B．tell people about baggage check

　　C．warn against the damage of locking the baggage

　　D．persuade people to contact TSA

　　68．The passage is most probably written to those who___．

　　A．had their baggage selected for checking

　　B．refused to check their baggage

　　C．kept some damaged items in their baggage

　　D．left their baggage unlocked

　　69．The underlined word"liable"means"___"．

　　A．suitable by law

　　B．permitted by law

　　C．responsible by law

　　D．prepared by law

　　70．For packing tips and other suggestions，visit___．