>> welcome back, everyone. we want to bring you up to date on our breaking news out of pakistan. at least seven people are dead and nearly two dozen wounded after militants attacked bacha khan university. >> security forces there at the

school say they've killed four attackers. right now we don't know if they're among the official death toll which police expect to rise. for more on the breaking news we want to bring in our cnn islamabad producer. she's on the phone with us. sofia, we know this situation is still unfolding. apparently it all began just a few hours ago there on campus as classes were getting underway. what's the latest information you have on if this is under control yet. >> reporter: well, at the moment we do know that we're getting reports from the military that firing at the scene has stopped, but that they are clearing the area block by block. this does not mean that the operation is finished. we're getting reports on the ground that people are still hearing hearing explosions a while ago.

it's an ongoing situation, and information coming out of that area is not very precised and detailed in. we're getting different reports from different sources, but we know that this took place in the morning today. it's a foggy morning in the northwest of pakistan. it's a situation where militants, we don't know how many have gone in. they took positions within the university which had a number of students, classes are ongoing. the new semesters have started. the it's a very big state of affairs right now. >> we'll continue to check in with you in the hours ahead as the army and the government tries to get a handle on what's happening there at the university. a positive development if the firing and gunfire has ended, but of course, as you mention, there's a bit of conflicting information coming out of the chaos right there. sofia on the line. we'll continue to update you all

as we get more information. back in the united states, the michigan governor says he is sorry about the crisis in the city of flint where drinking water is contaminated with lead. he's promising to fix the problem. he's having lawmakers to approve measu money to help the crisis. he says he'll release his e-mails for accountability. >> these protesters gathered tuesday calling for the resignation of the governor. some want him arrested. snyder says he's not going anywhere. >> to you, the people of flint, i say i'm sorry and i will fix it. no citizen of this great state should endure this kind of

catastrophe. government failed you. federal, state and local leaders by breaking the trust you place in it. i'm sorry most of all that i let you down. you deserve better. you deserve accountability. you deserve to know that the buck stops here with me. >> and a new report from the environmental protection agency puts the plam for the crisis on state and local officials. and a growing number of residents are joining lawsuits over the contamination. >> we report on how the crisis began and what officials have and have not done about it. >> reporter: it is something many take for granted. fresh, clean water from tap in your home. for the nearly 100,000 residents of flint, michigan, it's a problem. >> smelled like toilet. >> rhonda kelso says toxic water

has been flowing in flint for two years. she's part of class action suits alleging state and local officials lied to the community about what was in their water. >> you don't want to think about it. you want to block it out of your mind. it's like did they really do that? >> reporter: the suit alleges local and state officials made the decision to switch from the safe detroit water fly to water from the flint river. a savings of about 60 a day according to federal report. >> people are talking about rashes. they're talking about hair loss. they're talking about seizures that never happened before. we're talking to women that have had miskarcarriages. >> reporter: officials failed to add something to the water that then allowed lead from some of the system's pipes to contaminate the water. the suit states that early made

the decision. >> can you explain why you twice declined to go back to detroit water even after there were problems? >> i'm not at liberty to answer any questions regarding that situation. >> reporter: the governor admits the water crisis is a disaster, but many are questioning the response. according to a new lawsuit, the uscpa wrote a detailed memo vout lining unacceptable levels of lead in flint's water. that was shared with state officials but no action was taken. it wasn't until october, 2015 that the state changed flint's water supply. so far hundreds of residents have complained of health issues, including ron have a kelso who know worries about the future of her 12-year-old daughter. >> what are you asking for? >> paying for poison. i'm asking for compensation for injuries to my daughter. i'm asking for compensation for my property damage.

>> reporter: cnn, flint, michigan coming up in our next hour, i'll talk with the investigative reporter who exposed this water crisis. he was telling me there are ongoing efforts to discredit all the people who brought this to light. stay tuned for that. we're going to take a short break. we'll continue to follow the breaking news out of northwest pakistan, that attack on the bacha khan university. seven people dead, 20 injures. it's an ongoing situation.

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army officials say they are clearing the campus block by block after this deadly siege which started just as classes were getting underway. >> we understand from early reports at least four attackers have been killed. it's not clear if they're part of the official death roll we reported. the fog and low visibility is keeping security forces from knowing exactly how many militants are on campus. >> the u.s. centers for disease control and prevention are recommending that pregnant women who have traveled to these countries get screened for the disease. the virus has been linked to a sharp increase in cases of a specific brain defect in brazil in recent months. we have a doctor joining us now from dallas, tx exas. thank you for joining us.

doctor, how concerned should pregnant women be if they've traveled to those countries in south america and the caribbean, and what symptoms should they be looking for? >> the symptoms are mild. they include rash, fever, joint pain, and sometimes red eyes and a headache. but what's really concerning is now is this link between the virus and a very serious birth defect in children. it's a birth defect that's where children are born with an abnormally small skull and an underdeveloped brain. we've been hearing from doctors and scientists that they've been telling pregnant women to be very careful, to check for any of these symptoms, to see a doctor. it was on a few days ago that the u.s. cbc issued a warning about avoiding these pregnants because of the risk of contracting zika. >> a pregnant who has traveled there gets screened and finds

she's been exposed to the zika virus, what then? >> doctors say go to a health care provider. the most that doctors can co-at the moment is monitor that woman throughout her pregnancy. they'll use an ultrasound to check the baby. at the moment, that's the most that can be done. there's not a specific treatment for zika. there's no medicines that can prevent the virus. >> it's a real concern. what's being done to try to stop the spread of this disease? >> it's a lot to do with awareness and education. one of the things that's frustrating is that the mosquito that spreads this virus is an aggressive biters. it bites throughout the day and it likes to come indoors and bite inside as well. the key thing is bite prevention. that means long sleeves even

when it's hot, and using window screens. it's a scary virus. we're left with basic measures to try to prevent the spread. in brazil, there's been an explosion of cases, up to 1.5 million people. in columbia upwards of 1,000 cases reported every week. there's not a treatment for the virus. preventing mo quito bites is the most important thing to do. >> what happens to a baby born with this virus? >> it can vary. sadly, sometimes it causes death in a baby. other times it can cause developmental delay and intellect wall disability. it's a very concerning birth defect. the cdc is asking for more

studies to prove the connection between the virus and birth defects. >> thank you so much for joining us. appreciate it. >> thank you. >> very alarming situation there for pregnant women. when we come back, a much lighter story. the worst pass words in the world have been identified, and the list includes some old favorites. we'll tell you about computer users' lack of imagination when cnn news room continues. about businessesery days being hacked and intellectual property being stolen. that is cyber-crime and it affects each and every one of us. microsoft created the digital crimes unit to fight cyber-crime. we use the microsoft cloud to visualize information so we can track down the criminals. when it comes to the cloud, trust and security are paramount. we're building what we learn back into the cloud to make people and organizations safer.

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we are following breaking news out of northwest pakistan. at least 20 students dead after militants struck bacha khan campus. they're clearing the campus block by block. >> at least four attackers have been killed. the fog and low visibility is keeping security forces from knowing exactly how many militants are there on campus. we'll continue to follow

breaking news in the hours ahead. let's turn to the weather. a massive winter storm with a potential to impact more than 50 million people across the u.s. is brewing. some cities in the northeast u.s. this weekend could see up to two feet of snowfall. that's more than half a meter. let's go to pedram who's been following this closely. who will be hit in. >> pick any major city across the northeast united states. pretty significant snow accumulations. all the eyes are turning across parts of the eastern u.s. as we're watching a storm system developing across parts of the northeast u.s. it will dive into the gulf coast and push toward the eastern seaboard. the moisture in place, and the cold air already lined up in police station as we place as well. right now two possibilities likely. one of them takes the trek parallel to the eastern see

boar -- seaboard. another one is offshore keeping it confined to the mid atlantic region of the united states. heavy snow and significant impact possibilities at this point right there across the nation's capital toward virginia. the delmarva region, heavy snowfall from philadelphia to new york. moderate toward boston. the european model which has had good history, puts the bulls eye around the d.c. area and points south where the model thinks potentially 24 inches of snowfall. philadelphia, six to ten inches. new york city, just under 10 inches. boston just under 5 inches. tremendous wind as well. any time winds are over 35 miles per hour, you keep that going for three to four hours, blizzard like conditions develop. this is a widespread potential for blizzards to develop sometime saturday morning into saturday afternoon from washington toward new york city,

and that continues into the afternoon hours of saturday as well. i want to show you how this plays out. take a look at this. when you look at a storm system like this, you get nor'easters. blizzard like seasons, coastal erosion with this as well. you take a look at some of the major metro cities, bring in some of the showers. the flakes come down. you pick up about 26 inches around areas of washington d.c. as much as five inches around boston. some of the numbers would put the know totals in line with some of the greatest amounts we've seen in recorded history. an impressive amount of snow in a short time period across the northeast. >> brace yourselves, everyone. >> and suddenly it's gone. thank you so much, pedram. judge judi is probably the world's most famous tv judge. a little too famous, perhaps. >> yeah. it turns out an uncomfortable

number of people in the u.s. think she serves on the highest court in the land. here's genie moes. >> reporter: how dumb are we? brains so dumb that almost 10% of college grads think judge judi serves on the supreme court. just like the time an earthquake shook her courtroom, the thought that college grads they she sits on the supreme court sent shock waves through society. >> oh, judge judi. >> reporter: the statistic came from a report called a crisis in civic education. maybe the grads fell for jimmy kimmel's lie witness news. >> what do you think about barack obama's decision to appoint judge judi to the supreme court? >> i think it's a publicity stunt. >> she a gangster.

you got to give her that. >> reporter: a 10% statistic inspired tweets such as you raise student kids. >> college grads may not be quite as dumb as this makes them sound. consider how the question was framed. >> which of the following people fall on the supreme court. the correct answer is elena kagen. >> many folks picked lawrence warn pierce. >> you think he seems supreme courtish? >> reporter: the thing is most people had no idea who judith shine lan is. do you know who that is? >> no. >> reporter: judge judi. >> really? >> reporter: you know what i am, right? what's my name? >> reporter: and if you answered a to this multiple choice

question. >> that's not an answer. >> reporter: cnn, new york. >> oh, the shame. >> scary, suspect it? -- isn't it. >> the list of worst computer pass words is out. millions of pass words leaked. >> one, two, three, four, five six was the worst password. the word password is number two. then came 12 34568. and qer tty was four. that's the top six letters on the keyboard on the left. >> change the pass words. >> that's it for this hour. we'll have more cnn news room for you after the break. stay with us. i've been called a control freak... i like to think of myself as more of a control... enthusiast. mmm, a perfect 177-degrees.

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welcome to our viewers in the united states and those of you watching around the world. we are following breaking news out of pakistan this hour. i'm errol barnett. >> i'm rosemary church. thank you for joining us. this is