Update at 3:05 p.m. ET: The Des Moines Register reports Comey was in Iowa for a family party. Look who's talking. Former FBI Director James Comey, who has cultivated a low public profile since his surprise firing last May, confirmed Monday that he is the author of a Twitter account that was previously anonymous — and signaled that he is going to rejoin the national conversation. Comey tweeted an image of himself standing alone, along the roadside in Iowa, writing, "On the road home. Gotta get back to writing. Will try to tweet in useful ways." *snip* Earlier this year,...