While detectives scoured Nancy’s properties for more clues about her kidnapping, the investigation is broadening its horizons as billboards featuring Nancy’s photo and FBI contact information will be going up in several cities in Texas, New Mexico and California, according to FBI Phoenix Public Affairs Officer Brooke A. Brennan, CNN reported.

As you know, Nancy has been missing for nearly a week — she was first reported as missing to authorities on Sunday morning … and has not been seen since Saturday night when she was with family. She has been without her vital daily medication … though Pima County Sheriff Chris Nanos remains hopeful she is alive.

Her family, including NBC News anchor Savannah Guthrie, has sent out pleas to her abductors to give them a sign she is safe … though as far as the public knows, their requests have been left unanswered.