drew griffin, miguel marquez standing by.ah is at the apartment complex where this alleged shooter lived and also jim spellman following up on his school activities at the university of colorado. my volt is the best vehicle i've ever driven. i bought the car because of its efficiency. i bought the car because i could eliminate gas from my budget. i don't spend money on gasoline. it's been 4,000 miles since my last trip to the gas station. it's pretty great. i get a bunch of kids waving at me... giving me the thumbs up. it's always a gratifying experience. it makes me feel good about my car. i absolutely love my chevy volt. ♪ oh, just diagramming this accident with my state farm pocket agent app. you can also get a quote and pay your premium with this thing. i thought state farm didn't have all those apps? where did you hear that? the internet. and you believed it? yeah. they can't put anything on the internet that isn't true. where did you hear that? [ both ] the internet. oh look. here comes my date. i met him on the interne

miguel marquez takes us in-depth on the fight for oil in the arctic. >> reporter: for millions of nestingalruses, whales, and countless sea animals the arctic is the cradle of life. a short but intense summer with 24 hour sunshine. in the winter, another world, a place of subzero temperatures, ferocious winds and a frozen landscape, yet this harsh, but delicate place, is changing. look at this. from nasa, ice covering the north pole in 1980 compared to 2012. the north pole is melting. opening new opportunities. i am standing on an iceberg in the middle of the arctic. it must be several hundred tons and what's amazing, i can feel the entire structure move as the water comes underneath it. the eskimos have more than 100 words to describe ice and had it for a reason, ice, not only now in the summer, but certainly in the winter, is a way of life. >> reporter: that way of life headed for change. the arctic now open for summer shipping and some predictions say by mid century shipping year-round will be commonplace. enter shell and its plan to prospect for oil offshore here if they find what the

miguel marquez with the investigation. going to talk about the politics. >>> the mayor of the biggest city in the country demands more from the president on gun control. >> soothing words are nice, but maybe it's time that the two people who want to be president of the united states stand up and tell us what they're going to do about it. because this is obviously a problem across the country. >> the nation's largest lobby to prevent gun control, the brady campaign, echoed that sentiment saying, this tragedy is another grim reminder that guns are the enablers of mass killers and that our nation pays an unacceptable price for our failure to keep guns out of the hands of dangerous people. john avalon, back in new york. john, what are the candidate's stances on guns? >> it's fascinating. take a look what's being proposed. in the case of president obama, he does support strengthening gun control legislation. however his administration has no specific proposals they're putting forward. in some cases they've actually lose loosene

miguel marquez went to far northern alaska.r series for us which begins tonight to see if all this adds up. >> reporter: it is a massive gamble. if it pays, shell oil will reap the benefit of being the first to establish a new market for oil in one of the harshest climates on earth. >> we will be drilling these wells like they are the most complex, most difficult wells we've drilled in company history. >> reporter: the plan to sink two exploration wells into arctic waters. one in the beufort sea, the other in the chukchi. at least 26 billion barrels of black gold. enough to supply 10% of america's energy needs. >> if shell really hits something this summer, then i think things will heat up more. >> reporter: it's going to be a gold rush for oil? >> it will be an undersea gold rush for oil. >> reporter: but some of the native people who live here fear in the oil starts to flow their way of life could be threatened. >> our subsistence for the winter, it all come from the ocean, the fish and the whale. it's going to ruin our ocean

miguel marquez takes us in-depth on the fight for oil in the arctic. >> reporter: for millions of nestingalruses, whales, and countless sea animals the arctic is the cradle of life. a short but intense summer with 24 hour sunshine. in the winter, another world, a place of subzero temperatures, ferocious winds and a frozen landscape, yet this harsh, but delicate place, is changing. look at this. from nasa, ice covering the

>> miguel marquez, thanks so much. make sure you catch miguel's special report "cold wars the fight for arctic oil" this week on "erin burnett out front" 7:00 p.m. eastern. >>> speaking of the yis arctic on this hot july day, hot july every day across our country, actually, i got to give a shout out to the coolest invention of all time. the ac. carrier conditioner. it was 110 years ago today, july 17th 1902, that willis carrier showed off the blueprints for his new-fangled invention to help a new york print shop keep its presses working in the stifling heat and humidity. the carrier company is still around today, by the way. so thanks, willis. can't imagine life without your invention. >>> fed chairman ben bernanke's message on the nation's economy can be summed up with two words. frustratingly slow, especially when it comes to jobs. bernanke on capitol hill for a semiannual monetary police report say the economy's recovery is slowing and points to two big reasons -- europe's financial crisis and congress's inability to

miguel marquez reports. >> it's a massive gamble.f it pays, shell will reap the benefit of being the first to establish a new market for oil in one of the harshest climates in earth. >> we'll be drilling these like they're the most complex, most difficult wells we have drilled in company history. >> the plan to sink two into arctic waters, the wells won't bring up oil, but are designed to confirm what shell believers is down there, at least 26 billion barrels of black gold, enough to supply 10% of america's energy needs. >> if shell really hits something and then i think things will heat up even more. it's going to be a gold rush? >> it will be an undersea gold rush for oil. >> but some of the native people who live here fear if the oil starts to flow, their way of life could be threatened. >> for the winter, it all comes from the ocean. the fish and the whale. it's going to ruin our ocean. >> abigail has lived in the tiny eskimo community her entire life. she's doing what she's done for years, preparing a seal skin to be made into w

miguel marquez shows us what one american company is doing and what people who live close to the area the race for oil and gas in the arctic is on. way out ahead, the russians, norwegians, danes and canada. when shell oil drills exploratory wells off alaska's north slope this summer potential u.s. oil fields, too, will be in the game. a game that will test shell's technical abilities. above all, ice will be one of the biggest challenges. >> we recognize we'll be working in ice. our assets are developed to work in ice. >> reporter: drilling the wells will be two drilling rigs that have operated in ice before. each will be anchored to the sea floor by eight massive cables, the cable array can be severed, the rigs can float free in the event of an emergency. this is america's last frontier and one of the most pristine and fragile wilderness areas left in the world. if shell finds what it thinks it will under the ocean this summer it will cause a gold rush for oil for decades to come. that will mean permanent production wells. they will be heavy and very big, fully enclosed cement and and

miguel marquez went to point hope, alaska, to find out what's at stake. >> we've been hunting oil forr here. he and his town are holding out against seemingly the inevitable, oil exploration off their shores, their garden, as he calls it. 65% of their diet comes from what they can hunt and gather. their primary source of life, whales. >> it feeds us. it's clothed us. it's sheltered us. it's our spirituality. gives us an identity of who we are as a people. >> reporter: his people have hunted just about everything at sea and on land, scratching out an existence here for 2,000 years. but it's not just walruses, seals and whales that the people of point hope rely on for food, it's these birds, mir, that come here by the hundreds of thousands. they lay these incredibly beautiful decorative eggs. the egg, a yearly favorite. they only have about a week to collect them before the chicks inside to mature. to collect them, men brave steep cliffs and flimsy ropes. it's a delicate and tenuous cycle. >> we live a cycle of life where we hunt different animals at different times. we know when they'r

miguel marquez is in mexico and i asked him what we know about the projected winner. >> reporter: whend presumptive mexican president takes over, he is going to be like something we've never seen in mexican leadership. he's promising huge change across mexico, starting with security and the economy here. promising to build a national police force, in order to take on the drug cartels, promising to reform the energy sector and all the monopolies across the mexican landscape. he's also promising to take on poverty and create more opportunities for the middle class here by creating lots of educational opportunities for them so that more and more mexicans can move into the middle class and have better lives. john? >>> our fifth story "outfront" tonight, there's a new movie portraying abraham lincoln as a vampire share. let's take a look. >> i presume you know what we can do with this? >> i know what you can do against one vampire. but against 20? >> it's part of what appears to be a trend of a reverent but heartfelt takes on american history. now a writer has taken it upon himself to rewri

miguel marquez is in mexico and i asked him what we know about the projected winner. >> reporter: whenhis 45-year-old presumptive mexican president takes over, he is promising huge change across mexico, starting with security and the economy here, promising to build a national police force in order to take on the drug cartels, promising to reform the energy sector and all the monopolies across the mexican landscape. he's also promising to take on poverty and create more opportunities for the middle class here by creating lots of educational opportunities for them so that more and more mexicans can move into the middle class and have better lives. john? >> let's check in with ashleigh banfield in for anderson cooper with a look at what's ahead on "a.c. 360". >> we're keeping them honest ahead on "360." the biggest tax increase in the world? that's what some politicians are calling president obama's health care reform after the supreme court upheld the law. republicans have really zeroed in on the tax language. democrats, are pretty adamant that it's a penalty. despite what the opinion o