they are investors pete peterson and nicolas berggruen, south african mining tycoon patrice motsepe and his wife, dr. precious moloi-motsepe, entrepreneur sara blakely, and a.o.l. founder steve case, and his wife jean. when did you first hear of the giving pledge? >> jean case: melinda called and talked to us. but we had the benefit of knowing bill and melinda for a long time, going back to our technology roots. >> steve case: we competed against them for many years. >> jean case: we did. >> steve case: and we're happy to finally join forces. >> rose: you wanted to be on their side. >> steve case: yeah, yeah, we wanted to be on the... aligned. >> rose: they've all signed the same pledge, and they bring the same brashness to their philanthropic ambition that helped them build financial empires. >> pete peterson: charlie, this is a group made up largely of entrepreneurs. and they didn't make a billion dollars or $billion by doing the ordinary; they did it by >> rose: that's certainly true for sara blakely. >> sara blakely: well, i made all the money by making other people's butts look a l

alan peterson, good morning, mr. pete. 101 santa rosa. fooooooog. thank you.rainfall totals, pretty good again. as we talked about. i talked about this for a couple of days from about the golden gate north. going to be pretty impressive. nothing record shattering, you picked up an inch of rain. next day, you get maybe a quarter inch. next day, a quarter inch. and soon, you get serious rain. socal, mountain view, quarter inch. union city in there as well. north bay is going to take the most of. this active pattern maybe for a while. we get a break today. yeah. we get a break. rain will move back in one continuous stream. forecast models continue to flip flop but they still bring some rain in here. tonight, north bay, into saturday does look like a rain day saturday. one thing i want you to get out of this is that southern california is not in on the party here. 1/3 inch. don't let that full you between san francisco and eureka. mendicino county, there will be some isolated 8 to 10-inch amount. i do think that's going to happen. here is the system climbing up a

a look at the machinery market with greg peterson--you may know him as machinery pete. we'll kick the series off at an auction in london ohio. machinery insight you won't want to miss--next week as we go on the road with machinery pete. u.s. farm report is brought to you by corvus, the number-one pre-emergence corn herbicide." welcome back to tractor tales. we've got 4 molines our collector owns. we met him in north central montana during a visit to the big sky state. we farmed with two of these. and back when we were doing that, propane was only like 14 cents a gallon. we liked them really well. my uncle bought this one brand new. i have another one that bought second hand. and we did have a third one that i traded off. this one i did a restoration on. it really didn't need a lot. just a few dings and a paint job and clean up. we farmed with some gas burners a few years back. and we switched over this propane with cheaper to run and less valve problems and it somewhat more power too. it was always debatable with the deisel the deisel guys always thought the deisel were

peterson tonight, thank you. >>> today's shooting is a prime example of what police in the u.s. have been fearing. attacks on officers inspired by calls from isis to target as nbc's pete williams reports, it happened before in this country. >> reporter: as four police officers posed for a picture on a new york city street, a little over a year ago, a man with a hatchet rushed up and attacked them. one was hurt in the arm. but one officer was hit in the head and seriously injured. >> i didn't think i would live. >> reporter: police say the attacker, a e-year-old, was a muslim convert inspired by isis. six months ago police shot a boston man preparing to board a bus with a knife after he was heard on a wire tap saying he planned to kill police officers that day. the boys in blue, he called them. police identified him as rahim and said he too was inspired by isis. for months isis on social media has been encouraging people worldwide to attack anyone in uniform. a year ago, for example, an isis leader said, rise up and kill intelligence officers, police so far this decade the over all number of u.s. police officers killed in ambushes has been down slightly. an average of