with plans for 13 new arctic military base he, russis, russis sending bombers and fighter jets like these on applications high above the frozen tundra. the u.s. and canada, meanwhile are dusting off their own military plans. norway even moved its military headquarters 600 miles north inside the arctic circle to keep annal eyan eye on russia. the reason, exploration could be especially lucrative. melting ice caps are unlocking vast rimps oil an riches of oil. they are opening up new shipping routes on top of the world. but the arctic is still an untamed wilderness and the extreme weather could pose mortal threats to both shippers and explorers. that means despite recent sanctions over ukraine, russia and the west still rely on each other to keep their people safe. i sat down with the man in charge ever coordinating norway's search and rescue efforts with russia. these days most everybody is complaining about russia and you actually have one of the better riches with russia. >> yeah, in search and rescue we still have a very good cooperation with russia. we need to help each other because t

moment's noce. >> we can get closer and identifyhatever is out there. >> what they hav seen o ere, russirier bomber capable of carrying clear weons. these encounters have become common enough tetely, that error n norad placeces red plaques on t wall when thers an interct. >> rsia represe the greate threat to our nationa security. >> russia is the e only countryn effortrt tha has the ability to destro the united ates. >> we're confrontingng aussia that has nowntered aew chapr in theold war. >> las summer rush tt seember five wships to alaskan waters. >> wead to prepare for any event that mightht happen understanding thahat the presidt would be here at that time. >> so w we moved forces arounun that we were able to track them withth the utmost confidence th we wouould know where ty were at that time >> when the russians were offshore, p president visitite alaska. >> thi threat is veryy much in the prest.t. >> it t wasn't talking abo a mililitary threat. >> capable ofisisrupting life as wewe know it. >> ichina, builds up its ld and sea forces, t the pentagon reviewing it't'ss ability to cu

. >> what they hav seen o there, russi c-2arrier bomber caple of carrying clear wes.ug latetely, that errr n norad placecesed plaques on the wall when thers an interct. >> rsia represess the greate thrt to our national security. >> rsia is the only country on effortrt that h has the ability destro the united states. >> we'reonfronting aussia that has nowered aew chapr in thed war. >> las summer rush tt seembeber five wships t alaskan waters. >> wead to prepare for any evt that mightht happen understanding thahathe president would be here a that time. >> so w we moved forces arounun that we were able to track them withth the utmost confidence th we wouould know where they weret that time >> when the russians were offshore, e p president visititd alaska. >> thishreat is veryy much in the present.t. >>t t wasn't talking about a lilitary threat. >> capable of disisrupting lifes wewe kw it. >> ichina, builds u its ld and sea foes, t the pentagon i reviewingt't's ability to cutut ckck up to 71% of an aboborne paratrooper brade based in alaska. >> everyenior governmental off

. >>> did you know that the world largest bell was made in russi russia?ore it could be heard. now you uc berkeley replicated the sound always intended to make. sound engineers and researchers brought the imaginary bell to campus today. lee ann explains how it all came together. >> when it comes to the pitch of bell size matters this sound has been imagined by millions of russians but never been heard there. >> sound you can barely here. item around 80 herts like a really low base and more like a rumble. >> professor made it his project to recreate the sound of the czar bell built in 17 35 commissioned by' a of russia. taking a math mathematical approach professor calculated thicknesses shape movement and materials used to make the bel bell. l we got historical perspective of bells in her native russia. >> bells have a little been important in russian culture and brought people together. brought community together. they alarm people. had so many different function. >> most of the bells were destroyed under communist rule because they were considered a reli

. >> reporter: russianr: russi president vladimir putin putin boycotted the summit but theut presidenttheresi are still possibilities forl ssb advancement. in new york, kerr stein mcnar mcnary. >> a student with a tour groupnw was suos later in the day.edter police there plan to deploy to y drones to search theones to sear mountainous region.egio his parents have also traveled to the region asking the asking locals for any information.tion meanwhile the russian equivalent of the fbi hasnt o opened an investigation overon e whether foul play was involved e in colin's disappearance. >>> belgium's religiousbelg leaders came together to honoren the victims of the deadly ddl terror attacks in brusselsn br last week.last the chief rabbi of brussels brus and the president of theident t muslim executive making a show of unit yesterday. yesrday both led a multi-faith wreath laying ceremony in memory ofon the 32 people killed during ain string of bombings at brusselsel airport and subway system.d bwas >>> the centers for diseaseis control is bracing for theor t vehicle virus tzika virus to pok i