adam anderson had planned to keep the ground to prevent rain water from seeping in and becoming contaminated will be and think it is sad to put off a discussion on another plan to build a secondary wall around the closed eye small. chinese star power rankings their asian rivals japanese teams are also doing better in school fifteen year old students ranked higher in an international academic assessments. and for economic cooperation and development's your oecd in any way to reading and applying skills in math and science at the three years. here is easton on tuesday released its two thousand and twelve assessments of the five hundred and ten thousand students from sixty five countries and territories japanese institute that and all three areas compared to two thousand and nine. agency has dominated the top ranking believe this is a teams from shanghai came first in all categories as they did in two thousand i con con place second in reading and science and third in math. spread on academic testing has this to say the students teenagers seem to have a strong belief that with mosley took place

and, of course, there are wonderful diaries and papers like john hay's papers, henry adams' papers. lars anderson's papers are a treasure. he seems to real this these daily diaries about the trips and strange things they did that no one else did. but people like minnie townsend, i did find -- i hate people who say that, i mean, the archivist found -- in erie, pennsylvania, where they were from a box about this big full of plates. so that kind of thing happened and was nice. but anything telling about city life, not much. the first ambassador loved washington. he loved to ride the secret car and be out in public here, and he found it so much different from other countries where he was. but, no, i didn't. there was a -- i will say in the big houses here it was interesting, the servants in the census in records were german and english. and after 1907 they were all local, hostly black, african-american. but the butlers were almost universeally african-american. and they were much sought after. they would be hired out from under somebody. and archie butt in his hem worry, he was had been memoir, he was

anderson, on the top of the skull. that's good. okay, noose ready to go. okay. three, two, one, go. >> cooper: diving with brad and andy has given dr. adamew understanding of crocodiles and their underwater world. >> britton: you're in the water. you've got the current washing over you. you can feel the changes in temperature. and you suddenly think, "this is what it's like to be a crocodile. this crocodile is... is experiencing these same things." >> cooper: britton has actually begun to take dna samples from crocodiles underwater, cutting off pieces of their tails. and, incredibly, they don't seem to mind. diving with nile crocodiles is only possible in the winter months when the water is chilly and the animals are sluggish. these cold-blooded reptiles are far too dangerous to dive with in the summer. >> bestelink: the crocs are much more active. they're much more inclined to want to predate. you know, i don't... i don't... >> cooper: predate? attack? >> bestelink: attack, yeah. they... they... they want to go and eat something. >> cooper: so, two months from now, three months from now, you would not dive in these waters. >> bestelink:

adam lanza walked in and killed 26 people, 20 of them children. no one could understand why he did it. and a year later, families are still looking for answers. our andersons going to walk out. i did not understand the magnitude of the situation until about 2:00 in the afternoon. >> i was at work. i was driving back, and i'm calling her, asking for information. she's like i don't have any information. i am like why am i getting better information off am news radio than you, you're standing right there. i was about a mile from newtown when they came out and said 20 children had been killed, six adults, and it struck me, thank god i was only a mile from there, if i had be driving on 84, i would have run the car off the road, it was such a disturbing disconcerting moment. >> eventually a knock came, it was a police officer, finally i unlocked the door, there was a s.w.a.t. team. i grabbed two of my students's hantsds, each one grabbed a hand or two, we fled out the back of the school. >> she and her 15 first graders all survived. three of five first grade classrooms escaped unharmed that day. and the other two a different story. >> they finally said if you'r