The studios of 18 Doughty Street, Britain's latest political-news network, are located in a venerable town house in a part of London that was built on the spoils of empire and that, for more than a century, has been the capital's center of jurisprudence. To the right and left and across the road from No. 18, attorneys peddle notions of justice and fair play. But visitors to 18 Doughty Street are advised to check such outmoded concepts at the door. "We provide some balance," says Iain Dale, the network's co-founder and star presenter, "but no impartiality."