<span style="color: #222222;">Thousands of people in Russia have protested against plans to introduce tighter restrictions on the internet. A mass rally in Moscow and similar demonstrations in two other cities were called after parliament backed the controversial bill last month. </span><br />'' <br />'' <span style="color: #222222;">The government says the bill, which allows it to isolate Russia's internet service from the rest of the world, will improve cyber-security. But campaigners say it is an attempt to increase censorship and stifle dissent. </span><br />'' <br />'' <span style="color: #222222;">Activists say more than 15,000 people gathered in Moscow yesterday, which is double the estimate given by the police.</span><br />