Washington D.C. is a city about power. Men and women sacrifice money to have all the power they can get, grow, and hold. So, it's no surprise that lion in winter Ben Bradlee would put a few dents in the reputation of his former employee Bob Woodward.
The media, of course, picked up the scent. And the speculation about Bradlee's motives is driving the story. It's also fun to assume that boy scout Woodward might have been naughty in his journalistic methods.