因为随着时间的推移系统会更改，所以，如果发现新的安全漏洞，应保持甚至提高安全级别。
As the system changes over time some level of security should keep up, and even improve if new security holes are discovered.
人们会就提高安全级别提出种种问题，但这将带来成本，并将进一步增加民众日常生活的不便。
Questions will be asked about ramping up security levels but this will bring costs and further inconvenience to the daily lives of citizens.
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