By <a href="http://www.morganlewis.com/index.cfm?nav=05&obj=962871DA-4AC2-4460-A206004DACE7C841&showObj=FA49B1F9-F325-4BD5-8B93962696D6629A&showLinks=1&showTab=1" target="_blank"Frank G. Zarb Jr., a partner in the Washington, D.C. office of Sidley Austin Brown & Wood LLP.