In apparent homage to the new President, PepsiCo has plastered the sides of buses and bus stops in the nation’s capital with slogans like “Yes You Can,” “Optimismmmm” and “Hope.” In each poster, the letter “O” is inscribed with the redesigned Pepsi logo, a red, white and blue sphere that echoes the rising sun image used by the Obama campaign. It is not hard to interpret the message. Since 1984, Pepsi has been marketing itself as the hip, happening beverage of youth — “The Choice of a New Generation,” as its longtime slogan went
