major breakthrough in the battle against the aid epidemic and it com prosecute a bay area company. >> a new drug helped healthy gay men from catching aids. >> there is a ceremony and part celebrion at gay, lesbian, bisexual and transgender building. you have public officials and researchers trying to figur out what dwe do now. >> w found another way to prevent hiv. >> it followed 2500 men, half

taki a drug taking travata. the result of those taking travata, 36 men contracted hiv. of the placebo grou, a 44% reductn in cases. >> it's clear that usg a pill a day to help prevent hiv could be used in combination with other things. it's the first line of defense against hiv. >> i it's clearly a cause of for celebration at gay, lesbian, bisexual and transgender center this morning. it's not all things to all people. all the people that were in the study were hiv negative. >> if they are already infected with hiv and they've got this pill there is some chance that

drug resistance is could occur. it's important that people get periodically a test of their kidney function to make sure their body is well. >> today's announcement no more needs to be done for traf vata negative individuals. >> but what we need to do is come up with recommendations that come across, across the country and tart to look at questions who is gng to pay for this and how do we best deliver to have the biest impact. president obama issuing a statement about the big breakthrough and it says in part i'm encouraged by this groundbreaking research. while more work is needed these kind of studies could mark a new era in hiv prevention. president underscoring a huge step forward in the battle against a worldwide aids epidemic. thank you so much. from the bay area to the sierra, as the wintry scene as

we experience the tail end of a massive storm. >> check out the wind driven rain in pacifica. >> and now to tahoe a white journalist, heavenly resort. the lifts were closed today. >> and similar picture at alpine meadows, it opened ahead of schedule for the late on the winter storm mike nicco. >> we'll start with live doppler. a few rada returns showing up around dublin and pleasanton but a few showers around the south bay. but this is last push. cold front has moved through. we had a low of inch and quarter around bouldecreek.

cold front, you can see it moving through the bay. we're going to have col and breezy conditions today. cold conditions tonight. first arctic outbreak the season. that is why weave a freeze warninfor the north bay a bay v. could be a killing freeze. tonight is the only night it will be cold. >> oakland police and crime stoppers is $30,000 reward for information leing to the arrest of two suspects accused of sexually assaulting and robbing three female roommates. it begin when two men attacked a 26-year-old woman as she was walking home from the bart station. she was forced to take them to her apartment and her two roommates were sexually assaulted. anyone with information on the crime, they should call police

or crime stoppers. >> they are looking for four female suspects that attacked and robbed three women near a shopping center. it happed north of the sun valley shopping center. suspects asked to borrow a cell phone and change for five dollar bill. then they knocked the victims to the ground and begin kicking them. they stole one woman's purse. >> the fate the lone remaining swan could be decided today. control and animal officials will decide whether to relocate the swan at the palace of fine arts. her companion was found earlier with a broken neck. they were thinking of taking it to the san francisco zoo to make the previous home safe.

>> one the questions people asked, is how meg whitmas housekeeper to confront the former ceo. according to san francisco chronicle, she had the help of the california nurse association. the union spent millions of dollars campaigning against whitman during the governor's race. the ad claimed that she wasn't fairly compensated while working for meg whitman. >> and logan international airport the cargo area is evacuated because of a suspicious package. you are looking at a live picture of the airport with police on the scene and we have federal agents in bomb suirts. they say the package has a nigerian address on it. no passenger flights are being

affected at this time. we'll let you know if they get the all clear during the newscast. >> tsa is confirming new news. the agency in charge of aviation security excused pilots from the enhanced screenings. they'll the head of the tsa is aski the flying public not to ask for a full body scan as they have threatened. they are votin on a controversial ordinance that regulates tobacco sales. small business owners are outraged. teresa garcia joins us from san jose with re. >> the board has listened to public input and right now is debating in proposed new tobacco ordinance, if it is passed in santa clara, it will make it

much tougher to buy cigarettes illegally and could hurt the retailers. board 9 of supervisors is going to be voting quite soon that would basically regulate sales of tobacco in the uncorporated areas of the county. it would require the existing retailers to pay an application fee and plus $425 application fee. no permits would be issued to any new stores that have pharmacies or located within thousand feet of a school or 500 feet of another retailer. >> so for the first time really in santa clara coty there will be a real penalty to these stores that are selling tobacco product to minors. they could lose their ability to sell tobacco depending on how many violations they have and that would be a big financial loss to them. >> it's redundt.

the retailers wil be confronted with inspectors from the state and inspectors from the county. >> tobacco retailers are regulated through the state. they also called the legistion a business buster arguing that they could put them out of business and loss of local fees and it would decrease their tax revenue. there are other cities that have passed a similar ordinance. teresa garcia, "abc 7 news." still ahead, a disturbi exchange of fire between north and south korea. >> case going colder. a new disappointment in a case of

[ ma announcer ] with at&t u-verse tv, you can watch yourhows here... ♪ ...here... here... and here. ♪ [ female announcer ] switch to at&t now to get u-verse tv starting at just 39 a month for six months, dvr included. or get up to 300 dollars in promoti cards with qualifying u-verse bundle. [ male announcer u-verse tv lets you record up to four shows at once from anroom on a single dvr... and play them back here... here... here. and now you can stream shows on your computer with u-verse onlin

or download shs on your smartphone and watch them...anywhere. [ female announcer ] so call to get your u-verse tv starting at just 39 a month for six mohs, dvr included. or get up to 3 dollars in promotion cards with a qualifying u-verse ndle. [ male announcer ] and watch tv here... here... and... [ laughs ] [ whisring ] uh, maybe not here. [ male announcer ] at&t u-verse -- tv like you've never seen before. comen... isn't it time an auto insurer? that's why you should talk to state farm. but not yet. first, talk to any o of the 40 million drivers who already ha state farm. 40 million. yeah, that's more than geico and progressive mbined. by a lot. million drivers. more savings. and discous up to 40%. where else you gonna get d? call an agent at 1-800-state-farm or go online.

south korea is warning north korea will retaliate after shells killed two south korean marines and sent civilians running for shelter. they are calling one of the gravest incidents since the end of korean war. >> it was the heaviest attack since the korean war ended. north korean milita shells

rained down killing two soldiers and setting dozens of houses ablaze. south korea returned fire. they were carrying out an annual military exercise when north korea warned them to stop or face retaliatn. >> the south koreans did not son and north koreans retaliated. >> it houses marines and civilians, mostly fishermen. it comes after three scientists returned from rth korea saying north korea's nuclear program was far more advanced. >> it alarmed me and the reason it alarmed me because it was such a surprise and it showed me that the policy that we've been following seems to be at a dead-end. >> they speculated at the north korea's nuear designs were to provoke sout korea. >> ty want to coerce the united states and the world into

negotiing and into giving the north koreans things that they want, including food and fuel and recnition by the outside world. >> as president obama headed to indiana, bill burton called the attack outrageous and provocative. yet another disappointment in the nalee holloway murder investigation. aruba a bone rently found on a beach did not belong to the alabama teager. they say the jawbone is hum but unclear whom itelongs to. she was las seen leaving the bar witjoran van der sloot who is was the prime suspect in her disappearance. >> all the rain people had to deal with and ow you what is

happenin we are seeing a clearing trend and that is the cold, dry arctic air that will bringing us freezi temperatures overnight. big announcement from buckingham palace, when and where they will say their i do's. >> and how they will play a role in the celebration. [ male announcer ] whetheryou'a or you'vbeen grooving here for some time now, you know that value come in many forms. for some it's a classic car, for others a pfession that lets themive back to the next generation. for many califorans, it's a medicare pl that gives them more for their money. with anthem blue cro, you can get a medire advantage ppo plan that offers $0 premiums and prescription drug coverage, you can seany doctor who accepts medicare, even the ones yoalready know and trust. plus membe always talk with a real person when they call not some computer syst. that's what we used to call grooving

if you are egible for medicare or will be soon, ask about one of the new ppo plans from ahem. you caschedule in-home visit, learn re at a local seminar, or get answe right over thehone. call 1-877-276-1149. that's 1-8-276-1149. with anthem blue cross, you're free to enjoy value like neverefore.

suspense is over, prince william and kate have set a date for their wedding. here are the details on the wedding bell that will be heard around the world. >> it is now offial, prince william and kate will marry on friday april 29 at within minister abbey. >> they've been together for nine years. think toet it over and done with. >> they chose the crch for the beauty and interest mass and royal connecon. william's grandmother and her mother were both maied here. british kings and queens are crowned here. >> i just think it's really good. >> it's a wonderful place right

in the center of london. it couldn't be a better place. >> british government said the wedding day will be a public holiday here the prime minister called it a momentous occasion and said the holiday would ensure people would have a chance to celebrate >> to give the whole country a day off. >> there is concern about holdina lavish event in the midst of an economic crisis. >> in the tough times here in britain the royal family that they will pa the entire cost of the wedding. >> british taxpayers will only pay for security costs the couple is on cloud nine and taking on an active role in planning their big day. >> guess what, rapper snoop dogg may be rubbing shoulders with the royalty. he wants to celebrate them and

snoop is in the performance line-up. they are talking to representatives when he arrived in london this week. we'll tell you how it works out. >> it will be fun. >> mike nicco, it's been a super busy day. >> time to change the wardbe and find thicker coats and put an extra blanket on the beds the next couple of nights. same system is bringing all the snow to the heavenly valley. up to sings feet around the tahoe ea. it will dump our temperatures in the 20s and we'll get our first hard freeze of the year. let's show you what is going on outside. the clouds are hanging around from south beach to the east around the bay bridge. these clouds will clear and it's going to be cool tonigh talk about temperatures right now, haven't changed much since this morning, we're in the low to mid-50s except for los gatos

at 46. we have a chance of a shower to maybe 2:00 to 3:00. santa cruz a little warmer at 57. other highlights, going to be chilly but dry afternoon. freezing cold temperatures tonigh and wednesday night. showers possible saturday and looks like dry on sunday. as far as what is happeni, cold front pushing through the bay area takinall the rain and most of the clouds with it. we're watching thes two ars of high pressure pump the arctic air and it's going to keep our temperatures pretty much where they are. they may drop down a little bit 4:00 or 4:00. you see the cooler air up to the north. monterey bay, low to mid 50s. breezy along coast, 35 mile-an-hour winds and bay shore 25 mile-an-hour winds but lack

of clouds, look at the cold air tonight. east bear valleys and north bay valleys, mid to upper 20s there. the rest of us above freezing to all the way around 42 in san francisco. so the east bay valleys i'm most concerned th a hard freeze, 28 degrees. 1:00 a.m. to 9:00 a.m. tomorrow morning. as far as the next night, tomorrowight, wednesday and thursday morning, we add the bay shore and sta clara valley so everybody but the coast could see some frost. up in tahoe, winter storm warning continues. western slope the sierras, until 6:00 all that new snow from a foot to three feet above 7,000 feet. gusts to 55 miles an hour which is why some of the resorts are closed. seven-day forecast, we friday morninwe may almost be as cold but just above the freezing

mark. sundaynd monday, sunshine but notice the inche the 50s. >> thanks, mike. >> one of the team members of the san francisco giants, first world series in 56 years -- giants announced today they have re-signed the first baseman aubrey huff to two-year $22 million contract. he led the giants in runs batted in last season and is one of the leaders in and off the field. he reached legendary status. they proud displayed and playing during the sa francisco giants celebration. there you have it. >> up next, two new residents arriving in unusual fashion at the academy of sciences. >> the holiday exhibititit@

breaking news in sonoma county, sky 7 hd is north of bodega bay after e person has died after a boat capsized. coastguard says they were out crab firing. they pulled five fishermen the hospital. >> let's end wi a note that is just right f the holidays. san francisco academy of

sciences has two new residents, reindeer. >> they landed on the roof. >> and it will be part of a new exhibit called tis the season for science. >> exhibit runs through january 2nd. it looks like too much fun. there is the snow, mike. >>