Another source of difficulty is the fact that agencies use a variety of techniques for gathering data , and these techniques vary in their burdensomeness and intrusion on protected interests .

其它源泉的困難是事實代辦處使用會集 data国产精品视频一区二区首页。欧美老熟妇A乱子视频在线观看。and 這些技術(shù)的各種各樣的技術(shù)變化在他們的難以承擔(dān)和闖入在保護的利益。