what authorities tell "america tonight"s michael oku was a chinese spy ring planted among the corn rows of iowa. >> the director of a major concern was in the field. goods. >> that's correct. >> what do you make of that. >> he must be hands on. >> a "america tonight" investigation and look at a man federal agents say was the ringleader. also tonight safe sport. a stunning series of high school player deaths raises new alarm for parents and coaches. my kids played, one is in pro football. i want to keep the game like it is. "america tonight"s sara hoy on curbing the hard hits for the love of the game. fighting down the home stretch. in a key state a challenger works to tie the incumbent to the health care policy, and it pay be working. >> arkansas comes first. that is not true. for six years they quoted president obama. >> running against a public opponent or obama care. chris brewery reports from arkansas, in our coverage much "america votes 2014." >>> and good evening, thanks for joining us. i'm when. we begin the hour with an investigation into an all-american grain of intellectual pr

"america tonight"s michael oku following up on his investigation. thank you so much. >> you got it. >>> after the break - what may prove a landmark decision for gay marriage supporters as the supreme court makes a surprising move not to take on the case. >>> also ahead - remembering baby doc. the haiti one-time leader gave his last interview to soledad o'brien. what victims of his regime remember of his time in power. >> on tech know, cars, the science behind... keeping us safe on the road... >> oh! >> oh my god! >> the driving force behind these new innovations >> i did not see that one coming... >> tech know's team of experts show you how the miracles of science... >> this is my selfie, what can you tell me about my future? >> can affect and surprise us... >> sharks like affection... >> tech know, where technology meets humanity only on al jazeera america >>> now a snapshot of stories - syrian kurds say us-led air strikes failed to close down i.s.i.l. fighters. n.a.t.o. is working on a strategy to protect turkey if the battle against i.s.i.l. shou

"america tonight"s michael oku following up on his investigation. thank you so much. >> you got it. >>> after the break - what may prove a landmark decision for gay marriage supporters as the supreme court makes a surprising move not to take on the case. >>> also ahead - remembering baby doc. the haiti one-time leader gave his last interview to soledad o'brien. what victims of his regime >> i lived that character >> a hollywood icon forest whitaker >> my interest in acting was always to continue to explore how it connected to other people >> making a difference >> what is occurring in other places, is affecting so many different ways... >> inspiring others >> we have to change those things, in order to make our whole live better >> every saturday, join us for exclusive... revealing... and surprising talks with the most interesting people of our time... talk to al jazeera, only on al jazeera america >> start with one issue education... gun control... the gap between rich and poor... job creation... climate change... tax policy... the economy... iran.

. >> also tonight - planting seeds of international espionage, what authorities tell michael oku was a chinese spy ring planted among

what authorities tell "america tonight"s michael oku was a chinese spy ring planted among the corn rows of iowa. >> the director of a major concern was in the field. and schlepping some of these goods. >> that's correct. >> what do you make of that. >> he must be hands on. >> a "america tonight" investigation and look at a man

. >> also tonight - planting seeds of international espionage, what authorities tell michael oku was a chinese spy ring planted among

recently and now, the city is looking north for some solutions that help keep homeless families safe michael okuith an in-depth look to help families put their lives on track. >> sants a barbara, a city famous for its coastline and moneyed mediterranean ease but there is another reality hidden in the shadows. >> it's hugh milating. >> the only life paula corb and her two daughters have known for the past four years is the one they have lived out on the road. stopping once in a while for takeout, making grocery runs and pit stops for gas. >> because the corbs' entire lives revolve around their mini van. they are among the so-called hidden homeless, the roughly 213 americans who live in unsheltered spaces n making this pit stop is the equivalent of paying the present. >> we always think about gas prices, and i imagine for you it different. >> it means we don't drive very far at all. i mean we go in about a four-block radius. it's about 5 to $10 a da$5 to $ >> that's september dollars a week times 4. i mean that's, you know, more than we really, you know, have got. >> homelessness, among families d