it would be interesting to test her DNA and see just how white she really is. She would probably get a world-class headrush like that nazi guy in north dakota that found out his "racial purity" could only be expressed in a fraction. It made for great television.
They would just have to get a DNA sample from some discarded object of hers (i am sure she burns through lipstick like the Tasmanian Devil on steroids, so finding a discarded something like that in the garbage probably wouldn't be very hard to do and wouldn't violate her privacy too much)
As soon as her percentage of african blood is determined, invite her to appear on Bill Maher's show as a panelist. Give the other guests some visqueen for when you reveal the results of the analysis, for her head would certainly explode like a cantaloupe at a Gallagher show.
And if that happened, peroxide futures would plummet, as she is a major consumer.