to walk out or go to the u.n. and break this agreement for a truce. >> right. >> if netanyahu proceed was plans for settlements. and we are told that he is going to proceed with these plans for settlement as soon as kerry leaves town out of deference to him not doing it immediately. perhaps linked to the prisoner release which is controversial so he is quieting the criticism. so how long can this tit for tat go on? at least keep these negotiations in play? >> would issues to keep in mind. one, you are right. with the deal that resumed the negotiations last summer was a deal in which the israelis agreed to release these prisoners, these are prisoners held prayer to the time of the oslo agreement in 1993. no israeli prime minister between 1993 and today have been prepared to release these -- >> it is a big step. >> it is a big step to do it. number one. in return the palestinians said