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Provided that they've not been covered up by blowing soil. noid bower found a total of forty circular ditches. in the vine fearful region of northeastern austria. in two thousand and five archaeologist. there and his team reconstructed one of these ditches near the town of helton bag they used stone tools and the same materials that would have been available during the stone age including wood bone and plant fibers. but it's the stone structures that tell us the most about our ancient ancestors. on the north sea island of silt for example there are more than five hundred burial sites made of s...

>> you can't just head to peru without preplanning. to prevent over crowding and wear and tear they limited the hikers to 200 a day. and reservations and licensed guides are a must. the andes are steep. in places the trail is glued to the mountain side. and they are stacked 40 feet or more. and a misstep can be fatal or a nasty plunge in the jungle. it is easy tore go through the mountain than around. it they constructed several tunnels using stone tools to punch their way through solid rock. it is an incredible sunset. and a view of the goal.

breaking point. where are we weak incentive that's what the author of "money ball" and "the blind side, "michael lewis, will give his insights on. finally, solutions, what will fix the problems that ail us? i'll talk to tom freedman of "the new york times" about his book. also, want to see the hottest new thing on the globe? take a trip to mumbai or shanghai. i'll explain. and of course a few thought on steve jobs. first, here's my take. barack obama busy apparently committed blasphemy. in an interview in florida last week, he dared to say that america had gotten soft. the denu...