In a moving story, Joshua Tartakovsky describes his transformation from being an Israeli soldier who thinks he is protecting Israel from terrorists to what he calls becoming pro-Palestinian and supporting one state where everyone– Jew and non-Jew– is treated the same: http://joshuatartakovsky.com/how-i-changed-from-being-a-former-israeli-soldier-to-pro-palestinian/#.XwKG3pNKhDM. The full article is long and well worth reading.
While written years ago, this Tartakovsky’s article parallel’s Peter Beinart’s ongoing transformation to an almost uncanny degree. This is the direction of progress.