They're looking for possible right wing extremists who may be plotting an insider attack.

他们正在寻找可能策划内部袭击的右翼极端分子。

In Afghanistan, at least 17 police and soldiers were killed overnight in a so-called insider attack.

在阿富汗，至少17名警察和士兵夜间被杀害，在一场所谓的“内部袭击”中。

It's the latest in a series of insider attacks against international troops. It happened in the southern Uruzgan province.

这是最近发生的针对国际部队的内部袭击。事件发生在南部的乌鲁兹甘省。