Definition: Given a text, write a compressed version of it in a single sentence.
Input: Hadley and Zelikow asked Clarke and his deputy, Roger Cressey, for a special briefing on the terrorist threat and how Clarke'sTransnationalThreats Directorate and Counterterrorism Security Group functioned.
Output:
Hadley and Zelikow asked Clarke and his deputy, Roger Cressey, for a special briefing on the terrorist threat.