For anyone who didn't see the coverage today in the 8:00 nancy grace hour, Cindy Anthony was saying that she and the family are refusing to let go of hope that Caylee is alive, and that recently most of the sighting tips they've received have been in Texas. She has the gut feeling that Caylee is most likely in Texas, Mexico, or Puerto Rico, judging from what Casey has shared with the family and from these alleged sighting tips. Meanwhile, the forensics expert, Dr. Kobelinski (?), was trying to explain to Nancy that he's not sure how conclusive the DNA findings so far have been, that as far as "banding" on the hair, it can occur in hair starting 8 hours after death up to 3 days, the bands on the hair darken during that time frame if they occur, the bands are actually formed by air sacs in the shaft of the hair. He says it's not known, at least to his knowledge, what other conditions could also cause banding to occur in hair. He said he also has not heard definitively which type of DNA testing they were able to perform, if it was mitochondrial DNA that they had to use, that would mean that they can't say for sure it's Caylee's hair, it could be Casey's hair. So that would not be very useful. But he doesn't know exactly what testing was performed, the nature of the sample, etc. He said he would have to wait to see what if anything is actually admitted as evidence in court and hear the details from the researchers to form any opinion about the hair evidence and what conclusions can be drawn from it. He said the "air sample" testing is an experimental technique, and that it would be a "long leap" from an air sample to any kind of reliable conclusion.