an easy ride. cbs s laura logan told me that was arrogant and sided with general mcchrystal. this morning we ll examine the fine line between cultivating sources and protecting them. supreme court nominee elena kagan was grilled this week in senate confirmation hearings, and what s that? you didn t catch the hearings? could that be because cable news largely blew them off? we ll ask the web s top court watcher about that. dave weigel resigned as a washington post blogger after leaked e-mails showed him talking trash. pretty ugly trash. about conservatives. did he deserve to lose his job? we ll ask him. plus buzz bissinger is a pulitzer prize winning author. so why the blank is he dropping f-bombs on twitter? i m howard kurtz, and this is reliable sources. at the outset, 25 years ago, it looks like what it was, a radio show put on the tv. the host sat there with an oversized mike and chatted with guests and took calls from viewers. but larry king live blossomed into a