Blinken Hopes to End Nightmare for Americans in Iran

The video discusses the wrongful detention of five Americans in Iran, highlighting their release to home detention as a positive step. It emphasizes the ongoing process to secure their return to the U.S., the priority of ensuring Americans' safety, and the challenges faced. The speaker expresses hope for the end of the detainees' ordeal while maintaining confidentiality to avoid jeopardizing their return.

What does the speaker mean by 'the beginning of the end of their nightmare'?

Why does the speaker refrain from discussing the details of the ongoing process?