Jolted by the deaths of 30 British tourists in Tunisia at the hands of a gunman professing allegiance to the Islamic State , Prime Minister David Cameron is considering joining the United States in bombing the group’s forces in Syria . Mr. Cameron’s spokeswoman, Helen Bower, briefing reporters on Thursday, said that the prime minister wanted members of Parliament to “be thinking about” authorizing Britain to do “more in Syria .” Ms. Bower said Mr. Cameron thought that “there has been and continues to be a case for doing more in Syria” against the Islamic State, also known as ISIS or ISIL. Britain is already conducting bombing runs against the group in Iraq. “What has changed is the growing evidence that ISIL poses a threat to people […]