Officers of the KR Line did not want to immediately arrest all KGB personnel identified by Ames and Hanssen because they knew that to do that would draw the attention of the CIA and FBI (which it did).
Because they knew that draw the attention of the CIA and FBI (with it did). Officers of the KR Line did not want to immediately arrest all identified by Ames and Hanssen.
Officers of the KR Line did not want to immediately arrest all identified by Ames and Hanssen. Because they knew that draw the attention of the CIA and FBI (with it did).
Officers of the KR Line did not want to immediately arrest all identified by Ames and Hanssen. Because they knew that draw the attention of the CIA and FBI (with it did).