'We are ready to talk': Savannah Guthrie appeals for return of missing mother – video

Key Highlights

• Nancy Guthrie, 84, has been missing since February 4 in Tucson, Arizona.
• Savannah Guthrie and her siblings released a video thanking supporters and addressing their mother's possible captors.
• They expressed concern for their mother's fragile health and need for medication.
• The family acknowledged media reports of a ransom letter.
• They emphasized the importance of confirming their mother's safety before engaging in discussions.