are addressing unique challenges. we will also look at moscow's massive renewal program and how refugees are flowing into the amazon. all that ahead on bloomberg businessweek. ♪ oliver: we are here with megan murphy to talk about the special focus on cities and this week's is this week. i love it and you guys love it. there is so much great work here. why the focus on cities? >> cities are a microcosm of the demographic changes that are happening. we see this entrenchment at the national political level and not just in the u.s.. cities are becoming the petri