hemisphere. that will happen tomorrow. construction crews are going to put the last two pieces of the spire into place. that will bring the building to its total height 1,776 feet tall. it s already the tallest building in new york city. could a bomb sniffing dog have prevented the boston marathon attack or could a machine? technology is putting highly trained canines against man-made bomb detectors. cnn pentagon correspondent barbara starr has more for you. carol, some new advances in bomb detection technology are coming that experts hope will keep everyonsafe. from the boston marathon to u.s. troops on patrol in afghanistan, in the life and death challenge to detect bombs. it s a debate over dog versus machine in the search for the best solutions. oak ridge national laboratory is
of course any information that they may be able to get from that is critical for authorities. one security analysts told cnn for the investigation, the deleted accounts are the most significant. could a bomb-sniffing dog presented the boston marathon attacks or could a machine? new technology is pitting highly trained k-9s against man-made detecters. technology is coming that experts hope will keep everybody safe. from the boston marathon to u.s. troops on patrol in afghanistan, in the life and death challenge to detect bombs. it s a debate over dog versus machine in the search for the best solutions. oak ridge national laboratory is focusing on technology. this bunch of boxes and computer
investigation of rupert murdoch s media empire as the company pays a new price for its phone hacking scandal. could a massive probe now under way in britain happen here in the united states? and the obama money-maybing machine. who s behind the cash and can the republicans compete? president obama and the congressional leadership are under enormous pressure right now, about 40 minutes into their latest round of debt crisis talks. they haveless than three weeks until the deadline to raise the legal limit on the federal debt. and by all accounts, they re still very far apart. what if anything emerges from this meeting? consider the very dire warnings from the chairman of the federal reserve. ben bernanke using very strong words today, telling congress that the global financial system would be thrown into enormous disarray. that s a direct quote, if the u.s. treasury is deadbeat on its debt. ff we went so far as to default on the debt, it would be a major crisis. the treasur