Former European Commission president Jean-Claude Juncker has voiced opposition to Germany’s imminent increase in border controls, warning of the inconvenience posed to commuters and the potential threat to European integration. On Monday, German Interior Minister Nancy Faeser ordered the introduction of temporary controls at all German land borders to curb the number of unauthorized entries, in an effort to clamp down on migration. The checks – which expand an existing scheme to all German entry points – are to begin on Monday and will initially last for six months. Speaking to dpa in his nati…