Very interesting article, but even though there is acknowledgement of the difficulty, its optimism for people to look past the .01% of genetic differences seems unrealistic because of the way the human mind works. In other words, the science may confirm or dispute something, but it doesn't make up for unique mental processing.
JDB, you shouldn't encourage me to link material by actually reading my links.
On the subject of how the the brains work on the uniqueness of each individual i offer up this link which in part states,
"With our study we were able to confirm that the structure of people's brains is very individual," says Lutz Jäncke on the findings. "The combination of genetic and non-genetic influences clearly affects not only the functioning of the brain, but also its anatomy." The replacement of fingerprint sensors with MRI scans in the future is unlikely, however. MRIs are too expensive and time-consuming in comparison to the proven and simple method of taking fingerprints.