Las Vegas Review Journal – A bill to restore a ban on online gaming was introduced Wednesday in Congress, adding another layer to the big-money battle over whether gambling should be allowed on the Internet. The bill by Sen. Lindsey Graham, R-S.C., and Rep. Jason Chaffetz, R-Utah., seeks to reinstate federal law to prohibit “all forms of Internet gambling.” It comes in the wake of a December 2011 Justice Department opinion that the relevant law, the Interstate Wire Act of 1961, covers only sports betting. That opinion dramatically changed the landscape, sparking moves by states, casino interests and technology vendors…