This month Sultan Arab, Nina Krauthamer, and Galia Antebi look briefly at several timely issues, including (i) a Swiss court order granting UBS the right to appeal an administrative order to disclose French client information to French tax authorities, (ii) the expansion of I.R.S. offshore tax avoidance investigations to banks in countries other than Switzerland, and (iii) a continuing controversy over the Common Consolidated Tax Base, known as the C.C.T.B., proposed by the E.U. Commission.