To secure the gains that this country has made requires cons

To secure the gains that this country has made requires constant vigilance, not complacency, whether by challenging those who erect new barriers to the vote, or ensuring that the scales of justice work equally for all, and the criminal justice system is not simply a pipeline from under-funded schools to overcrowded jails. It requires vigilance."求翻译啊.

前面的长句是一个复杂的多重复合句,结构如下：
 
第一分句  To secure the gains that this country has made requires constant vigilance,not complacency,whether by challenging those who erect new barriers to the vote,or ensuring that the scales of justice work equally for all,
 
　　主句：To secure the gains requires constant vigilance,not complacency,要保证这种成果需要持续不断的警惕,而不是满足
　　定语从句：that this country has made 这个国家已取得的（成果）
　　让步状语：whether by challenging those who erect new barriers to the vote,or ensuring that the scales of justice work equally for all,and the criminal justice system is not simply a pipeline from under-funded schools to overcrowded jails.
　　【选择连词】whether … or  无论是…还是…
　　【并列介词短语】
by challenging those who erect new barriers to the vote,（无论是）通过对那些给选举设置新障碍的人表示反对（介词宾语是动名词短语,内含定语从句 who erect new barriers to the vote）
(by) ensuring that the scales of justice work equally for all,（还是）通过确保司法天平为所有人公正地运转（内含宾语从句 that the scales of justice work equally for all）
 
第二分句  and the criminal justice system is not simply a pipeline from under-funded schools to overcrowded jails..
 
　　主语：the criminal justice system 刑事司法制度
　　主要谓语部分：is not simply a pipeline不只是输送途径
　　定语：fromunder-funded schools to overcrowded jails.从资金不足的学校到拥挤的监狱的（输送途径）
 
参考译文：无论是通过对那些给选举设置新障碍的人表示反对还是确保司法天平为所有人公正地运转,要保证这个国家已取得的成果需要持续不断的警惕,而不是自我满足；刑事司法制度不只是从资金不足的学校到人满为患的监狱的输送途径.它需要保持警惕.
再问： 大神啊。。。佩服！！