Cameron makes last appeal ahead of Brexit vote

British Prime Minister David Cameron made one last appeal to voters today to keep the U.K. in the European Union. The so-called Brexit vote, when Britons will decide whether to bow out of the alliance of European countries, takes place Thursday. According to pollsters, the country is evenly split on the referendum, with the projected outcome too close to call. Cameron targeted his rare televised appeal to older voters, who are more likely to go to the polls and are more skeptical of EU membership benefits. The groups advocating for an EU pullout have focused on problems with unfettered immigration, which Britain has a limited ability to control under EU policies.