By Rand Paul
Obama acts as though we no longer have a Constitution
Independent voices from the TWT Communities
The mystery behind the most enigmatic smile in art _ Leonardo da Vinci's "Mona Lisa" _ just got a little more complicated.
A Zurich-based foundation says it will prove to the world Thursday that Leonardo Da Vinci painted an earlier version of the Mona Lisa _ a claim doubted by at least one expert on the multifaceted Renaissance artist.