WASHINGTON, Feb. 19 - An estimated 1.5 million former convicts are unable to vote in 14 states around the country because of state policies that make it cumbersome, confusing and difficult for them to return to voter rolls after completing their sentences, according to a new study. Fewer than 3 percent of felons in those states have managed to register to vote after finishing their sentences, according to the study released Wednesday by the Sentencing Project, a nonprofit research group that favors more liberal sentencing policies for criminals. In Mississippi, for instance, just 107 of more than 82,000 felons have...