Oil sanctions bite as Russia raises taxes

<p>From the BBC World Service: Oil analyst Viktor Katona explains why the EU and G7 sanctions have had the desired impact as the Kremlin increases taxes on domestic oil production. Plus, the BBC&#8217;s Catherine Byaruhanga reports from the South Sudan town of Renk as efforts to broker a peace deal in neighboring Sudan get underway. And, who are the business winners and losers of public holidays? The BBC&#8217;s Elizabeth Hotson reports from the UK, which has three such holidays this month.</p>