israeli sources seem to suggest that sensitive information about the ongoing nuclear talks may be mentioned in prime minister netanyahu's speech. wondering what's being said about that where you are this morning. >> reporter: that's about as much as we've learned about the sensitive information. we saw this out actually from our cnn team on the flight over to washington, traveling with netanyahu. since then netanyahu hasn't really referenced or given any hint as to what information he might reveal. perhaps after the conciliatory tone we heard in his speech he could decide up until the last moment before his speech before congress what sensitive details he has and which he chooses to share in front of congress. >> over the weekend and yesterday we heard from former israeli commanders urging netanyahu to cancel his speech. i'm wondering if any other voices of dissent have emerged, this being the big political story there. >> reporter: in these latest couple of days, it's been fairly