Locals in Hanover have been given a very specific command for when the US President comes to visit — better neither heard nor seen. When US President Barack Obama arrives in Hanover for a visit on Sunday April 24th, residents have been told very clearly what is expected of them: stay away from windows and do not wave. Local police issued advisory flyers out of security concerns for some 1,800 residents who live near the Congress Centrum and zoo area, where Obama will be meeting Chancellor Angela Merkel for the Hanover Messe, a major global trade fair for industrial technology....