i m not sure it s seamless and algorithms are different and there s literally hundreds of thousands of them that operate within the markets right now. a lot of the algorithms sniff out liquidity where the most liquidity and the best price is. so when the new york stock exchange comes back online for the majority of stocks listed, the lick wickty should come back. . reporter: trading is still happening. you re not seeing panic? not at all. we traded down for things happening in china and the greece situation still unfolding. we re trading at a couple critical levels. i m impressed at the resiliency of our markets and you are that s an important point aels son. you re able to represent your orders in marketplace given the structures we have. there s interconnected markets. most stocks listed in the new york stock exchange trade in the other markets so you can find liquidity somewhere. trading happening elsewhere, dana dana just not at the new york
technical glitch or maybe it was related, then you had this halt in trading. there is a sigh of relief that the official sword this is not a cyber attack. but there s also a lot of question as to what happened here in the first place, ashleigh. alison, it s dana, i know it s hard to keep track when you re doing breaking news. but on the issue of the fbi, they have assistance to the stock exchange correct? sorry, i didn t hear you. the fbi. tell us about how they re assisting the stock exchange. they have assisted but you know what s interesting is that the exchange says this is merely a technical issue. in fact, the operations center that is literally here on the floor of the new york stock exchange is bustling right now trying to figure out what the problem is trying to fix it. but, of course yes, that was offered from the fbi. okay stand by for one minute alison i want to go
maggie trading was shut down just at the new york stock exchange but talk about global consequences. it s really the timing of this that s problematic. this is hitting a market that s already nervous about so many other things primarily greece and the debt crisis there, whether they ll leave the eurozone or be forced out. and china, china stock markets have been volatile, in freefall over there and many shares suspended in trading there. so global investors already sort of unnerved uncomfortable and selling and see something happening in the u.s. which we don t see very often. as keith mentioned, this is a long outage for the new york stock exchange almost two hours very soon. you can bet officials there want to try to make sure they have this resolve sod when they do open they re able to open smoothly. keith is right, that s a busy part of the day. even for investors not sitting in the u.s. it s a high volume time, that last hour two hours on the new york stock exchange.
compound the problem dana. thank you, alison we ll come back to you as we learn when and if the new york stock exchange is going to open back up trading and i want to turn back to something that happened this morning with united airlines, a computer malfunction causing all flights to be grounded. united is back up and running now. we re not exactly clear why this happened and how this hand. i want to go to mary schiavo, a cnn aviation analyst and former inspector general with the u.s. department of transportation. mary schiavo, tell me from your perch and dealing with things like this maybe not this widespread, what do you think happened here? i m sorry, unfortunately, mary schiavo, i won t let you answer. that i ll get back to you in one second. let s listen to the white house briefing. this afternoon the president was briefed by his homeland security advisor lisa monaco and the white house chief of staff