Jean Horstman: &quot;Every aspect of Boston’s Olympic bid should be predicated on the intent to build a city that offers greater opportunity for everyone." Pictured: This architect's rendering released Monday, June 29, 2015, by the Boston 2024 planning committee shows an Olympic stadium that is proposed to be built in Boston if the city is awarded the Games. The Boston group trying to land the Olympics released the most detailed look yet at its bid for the Summer Games, unveiling a $4.6 billion plan it says would create jobs and housing, expand the tax base and leave behind an improved city with a $210 million surplus. (Elkus Manfredi Architects for Boston 2024/AP)