Regularly scheduled air shows are unlikely to return to Scott Air Force Base in southwestern Illinois because of deep Pentagon spending cuts.  The Belleville News-Democrat reports that the base is looking to host an air show in 2017 to mark its 100^th anniversary.  But it’s unlikely there will be a revival of what was once a yearly summer staple in the area.  In years past, the Airpower Over the Midwest Air Show drew crowds of more than 100,000 people to the base outside Mascoutah.  Military air shows were halted nationwide last year because of automatic, across-the-board government spending cuts.  The Air Force lifted the moratorium in December but put in place stricter criteria that mean fewer bases are chosen to host the events.