Associated Press: It takes coordinated global responses to tackle terrorism, the financial meltdown, global warming and other problems in an age when such issues recognize no boundaries, President Barack Obama said Saturday. "In this new century, we live in a world that has grown smaller and more interconnected than at any time in history," Obama said in his weekly radio and Internet address, taped during his first presidential trip to Europe. "Threats to our nation’s security and economy can no longer …