've been on this campaign to name dark mattername darwhichme darwh something that has ethi- t has ethi- - - >> it doesn' >> ive a connotatio nnot doesn't ma doesn think abo doe thihihi anything because we don't know at it is and dark energy, same g. callwilm red and wilma. d >> bas going on in switzerland at cerne, rland ere theyking? >>y were looking for and they fou 's called the higgs boson, nobel prize was tor tor it.t. as als lled the gls gls partic it's a -- >> 't ke that't hat't >> wel i don'el ieople call ieopl it i it call it fred. [lauter] >> this particle has a field and if you move through that field it hds you your hss. there's ss-granting ssleing ing ing g fiel so if you soe a so particle, that's a gothat' to at' to. at' to. you sit there and hand mass to everybody and everybody and eerybody erybody particle led to it being known being - >> e le >> hings about gravity and the pullitfand the pull gravity that we didn't knee are shaking. shaking.aking. ing. y . y . . . >> but re we trying to? dark matter is d rethinking of our normal laws of avy or is it some other substanc

>> ethis trying to put a good face on a terrible situation. you know what else they are doing? now that they have got to cough up 35 billion they are turning to putin and saying remember two weeks ago you offered 15 can we have it now. >> as katrina said it will be -- >> it is a sobering reality. it is a pleasure to have you both here. thank you for coming in. >> >>> turning now to the ongoing crisis in venezuela. have the protesters and the opposition reached a crossroads. a peace conference was attended by opposition business leaders but not by political leaders. and the president declared thursday and friday holidays in advance of next week's caranva which means they will be shut down for a week. will it stop the momentum they had? joining us now representative of one of the student organizations. he has been among the student leaders of the demonstrations that have at times paralyzed the country. good to have you with us. what has the reaction been among opposition of the peace conference yesterday? some of the top business leaders in the country the head of venezuela's lar