i'm kiran chetry. >> good morning. i'm john roberts.g you about. >>> what went wrong? investigators in russia trying to determine the cause of a weekend plane crash that killed poland's president and 90 other people. >>> an unprecedented summit taking place in washington. leaders from across the globe meeting to make sure terrorists never get their hands on nuclear weapons. it is one of the biggest national gathering on u.s. soil ever. >>> republicans rallying the troops this weekend in the big easy as they try to get past the crisis in leadership and focus on future goals, taking back congress and after that, the white house. a live report just ahead. >>> of course, the a.m. fix blog is up and running. we would like to hear from you about what's in the news this morning. go to cnn.com/am fix. we will be reading some of your comments in the next hour. >>> we begin with the nation's grief. poland is observing seven days of national mourning after the death of their president, lech kaczynski. what caused the president's plane to go down i

i'm jim acosta in for john roberts. >> i'm kiran chetry. we have a lot of stories.e planes back in the skies. they are hoping it happens after ann arbor cloud shut down travel. a lot of questions about whether they can guarantee safety in the sky and were authorities to ground so much flights. >>> a no-go for round one. nasa calls off the first landing attempt for the space shuttle "discovery" because of bad weather. will the crew get back to earth today. >>> all eyes on goldman sachs, the dow took a dive friday after the fed charged the bank with fraud. stock futures falling today on concerns about the fallout over goldman sachs. charged with civil fraud tied to its dealings and bonds backed by sub-prime mortgages. will the crackdown on wall street bring out the bears. we are following that. our a.m. fix blog is up and running. we would love for you to join, cnn.com/amfix. we will read some of your comments. >>> first, the ash cloud that's casting a devastating shadow over international air traffic may be lessening. the agency overseeing european air space seas tha

i'm kiran chetry in new york. >>> good morning.ohn rob berlts in west virginia where search and rescue operations are back under way. four rescue teams of eight members a piece went down in ma mine a couple of miles into the mine now. they have to make their way about five miles in to try to find the location of the four missing miners, the ones unaccounted for. we spoke with the governor. he said it is going to be tough going. they are going to have to pass by the bodies of miners they know are already in the mine and will continue looking for the other four. the things they will be looking for, whether or not the rescue chambers were deployed. the governor says if they find they are all intact, not deployed, that that's going to be a very bad sign. we will have further updates for you throughout the morning. right now, let's go back to new york and here is kiran. >> thanks, john. as you talked about, they would have to have a miracle happen today. this waiting game put mortgage strain on this community that's desperately trying t

i'm kiran chetry. >>> i'm john roberts. here are the big stories we will be telling you about.ne, don't buy the 2010 year model lexus gs-460. they call it a safety risk. it is calling on toyota, the parent company of lexus, to fix the problem fast. >> also, fewer loose nukes, one country has agreed to get rid of its stockpile as we hear dire warnings about what the world would be like if terrorists like alqaeda got their hands on the bomb. >>> conan o'brien returning to the land of late night on our sister network tbs. >>> the am fix blog is up and running. go to cnn.com/amfix. we will be reading your kochlts. getting a lot of comments on the controversy over spanking. >>> another setback for toyota. consumer reports magazine putting out an urgent warning about the company's 2010 lexus gs-460 saying the high-end suv is prone to rollovers during turns. they label it, "don't buy." nine years since consumers reports has rated a vehicle this poorly. >> when you go into a turn, if you encounter something or if the turn has a decreasing radius, when you lift off the throttle, the rea

. >> i'm kiran chetry.esident obama meeting with lawmakers today announcing possible supreme court picks for both parties. new polls show you think you know which way the president will go