a grouch of r r t from the arctic. well still to come on the program he said he'll be back and he kept his promise to we report on arnold schwarzenegger's visit to moscow from his tweet exchange with president medvedev driving the metro to his plans to help russia's high tech mission. the people thought to be behind september's deadly blast in russia's republic of north have been arrested the head of the country's security services says the case has now been solved but that's get the details now from kabul tom take us through these latest developments. yes kerry well the case that you're referring to refers to a bomb a suicide bomber in a car driving into a market invited us in north of setia early september he detonated his car bomb killing fifteen people and wounding one hundred a very serious attack there is since then he's a bit on the hunt for those responsible and i'll examine the board because the head