Canadian P.M. Raises BlackBerry Takeover Security Concerns

BlackBerry Ltd., which has drawn the interest of foreign companies such as Lenovo Group Ltd., should be wary of a potential takeover that raises national-security concerns, Canadian Prime Minister Stephen Harper said. BlackBerry Ltd., which has drawn the interest of foreign companies such as Lenovo Group Ltd., should be wary of a potential takeover that raises national-security concerns, Canadian Prime Minister Stephen Harper said.