david ariosto, al jazeera havana. >> and that's our show, i'm david schuster, thanks for watching. turning point... >> and that the interest points of both countries are better served by engagement than estrangement. >> diplomatic relations with cuba restored sealed with approval. the u.s. security council backs a deal to kerb iran's nuclear programme, but congress wants to know why the u.s. vote before lawmakers weighed in

death in custody. >> this investigation is still in treaty just as it would be a murder investigation. new video from inside a texas gaol where a woman was found dead in her cell. authorities called it a suicide. family says it can't be the truth losing sleep - too little shut eye increase the risk for allegation. -- for alzhiemer's. good evening i'm antonio mora. the u.s. and cuba took a step towards the goal of normalizing their relation. the cuban flag is raised outside their embassy in washington d.c. as mike viqueira dells us -- tells us one day of detente doesn't erase distrust. >> it was an historical moment for the first same since 19d 61

the cuban flag is flying above the embassy. ties are still strained. >> reporter: it was a ceremony to mark a new era. for the first time in 354 years the cuban flag is raised in washington over what as of mondays, is the official embassy to the united states. cubans sang the national anthem spirits high for a visible sign of normal diplomatic relations. mistrust lingers. no sooner had he entered the newly christened embassy. rodriguez warned the united states against meddling. >> we reaffirm cuba's willingness to move forward to relations with the united states, in an instructive spirit. without prejudice to independent or the interference in our affairs. >> opening cuban society is a

goal of president obama's new policy. >> that is part of the strategy for a seeking to engage the cuban people more effectively and bring about the change we would like to see inside of cuba. meeting with secretary of state john kerry rodriguez had a list of demands. >> totally lifting of the blockade the return of the legal territory of guantanamo and the full respect for the cuban sovereignty, and the compensation to all people for human and economic damages. the blockade a the long-standing u.s. trade embargo against cuba. only congress can lift it. republican leaders vowed to keep it in place. on monday normalization was blasted. >> if anyone thinks the sanctions is going away, the so-called embargo is going away. they have not been paying

attention to the attitude of congress. unlike congress they understand that the castro regime are the oppressors. >> the president's spokesman was tight-lipped about who would be nominated, and when. adding that president barack obama would not compete against human rights. >> it's clear cuba has significant progress to make in all of those areas. >> you saw the secretary of state received the foreign minister from cuba bruno rod reeg as. he planned to travel to havana for the flag raising there on august the 14th. mike viqueira, outside the cuban embassy in washington. >> members of congress slammed the united nations for endorsing the iranian nuclear deal. security council vote unanimously to back the

agreement. and president obama called on congress to follow the lead of the international community. we look at the firestorm over the nuclear accord. we'll trial to get that to new a moment. a bomb near the turkish border near syria left 31 dead. activists discussing the restriction of kobane. kurdish fighters capturing the city from fighters this year. no one claimed responsibility for the attack that wounded nearly 100 people. the attack was carried out by suicide bombers near i.s.i.l. >> a friendly fire incident in afghanistan has been apologised for. a u.s. air strike killed as many as 10 av gan sold -- afghan

soldiers, it's the second friendly fire incident in the area in seven months. >> this was an afghan mission to retrieve the wounded and the dead after an air strike hit a checkpoint rather than taliban leaders. >> in my opinion it was a mistake with americans. as a military man i can't see a reason why this would happen. some of the wounded soldiers would be evacuated when the taliban attacked medical teams. the fight went on for hours. soldiers retrieved their comrades despite the enemy fire. they don't have much choice. afghans have air capabilities. and relied on u.s. and n.a.t.o. troops for air support. >> we have a coordination centre. in this case they were not informed at all.

>> reporter: only a small force remains, mainly to train and help afghan forces to help with counterterrorism applications. >> the incident occurred after the taliban fired on u.s. helicopters. u.s. officials are investigating. a high-level delegation will look into what went wrong in the worst friendly fire killings since security control was handed to forces at the beginning of the year. back to the story about the u.n. security council voting to endorse the iran deal and congress not happy about it. paul beban takes a look at the fire storm over the nuclear accord. >> the draft resolution has been adapted unanimously. >> within hours of the security council sign off on a deal to scale back the nuclear programme in return for loosening sanctions. president obama said it's the

best way to stop iran from building a bomb. in is, by far, our strongest approach to ensure that iran does not have a nuclear weapon. there's broad consensus among the international community and

because of a low [ ♪♪ ]

the national guard and local police are cracking down on massive marijuana plantations in california they are not only illegal, they consume vast amounts of a pressure commodity in that state - water. >> some is drained. we have this exclusive report. >> reporter: the huge clearing in this remote area in

california is the dead give away to drug enforcement police officers cracking down on marijuana groves. we are following several federal and state law enforcement operators, as they swarm dozens of private properties to destroy tens of thousands of marijuana plants. in is no ordinary plant. these are sacred tribal lands. >> we are helpless. we go up on a hill and fight with them. >> reporter: for several generations this man and his family lived there. the marijuana growers are polluting the rivers. >> they are destroying our hills, where we used to hunt and fish. >> the environmental difference is staggering. marijuana plants require vast

amounts of water, 60 gallons a day. a huge strain on the environment, especially here where crippling draughts are in their fourth year. now they are working together to battle a common enemy. they called for help when the number of crops grew to 10 a year. >> there's easy target plenty of water. not a lot of enforcement. we don't get half the growers up here. >> evidence of hazardous chemicals and waste is everywhere. >> this is toxic to the environment. put a straight end to the tributaries that feed down word. >> and into the river. where salmon breed. thomas is here to feed his family. these days they are catching

fewer and fewer because the sediment is poisoning the grounds. >> they owned the land. the land owes us. we are going back to that land. >> new research suggests critical link. it's sleep that is disrupted. scientists believe too much tossing and turning causes them to accouple. joining us to discuss the findings. more and more. but with this study it's specific that we are not cleaning our brains.

>> like any parts of the body. the brain metabolises. sleep is key to keeping the toxic from the brain. there's the quality of the sleep. >> that's right. deep sleep, not rem sleep is key for this activity, in terms of getting rid of toxins from the brain. if you are not getting deep sleep, you will not ward off against alzhiemer's. >> how do we figure it out. how do you know if you have sleep apnoea or other issues keeping you getting the quality sleep you need. >> this is not the first study looking at the linkage between alzhiemer's and sleep. one of the questions is is your asleep refreshing. that is the key question.

if you don't feel refreshed. you should see your during and be worked up for other causes like sleep apnoea when you are not sleeping properly drugging ourselves is not a good idea. benaud drill or tranquilizers. >> i would not prescribe for my patients. some of these medications used to treat insomnia is linked to an increased risk of alzhiemer's. we want to improve the quality of sleep, sleep hygiene. going to bed at a similar time. getting up at a similar time. not drinking coffee and alcohol. reducing screen times. we know the numbers of people with alzhiemer's will soar. is there concern that a

percentage will grow. because of things like that that we are use things like that. making sleep worse, a lot is over weight. could we see a greater incidence? >> it's hard to sail. some are decreasing. smoke is on the decrease in this country. at the same time obes tee is degreasing. sleep is important. it's a question of build up of toxins in your brain it's too late to wait until you have alzhiemer's to make the changes. >> how much progress is made when it comes to drugs that might ward off alzhiemer's? >> i'm afraid we don't have a great answer to that. the main things to do are steps to prevent the disease. so exercise, eating right. sleeping enough and not abusing alcohol or smoking. >> good to have you with us.

>> my pleasure. >> republican president candidate donald trump is toning down his comments on john mccain's war record. he said tonight: if there has been a misunderstanding he'd take the comments back. he was campaigning in iowa this weekend. >> he's not a war hero. >> he's a war hero. >> he's a war hero because he was captured. i like people that weren't captured, i have to tell you. >> can you repeat that? >> he's a war hero because he was captured. >> he was held captive for more than 5.5 years. he was captured and refused early relief. he said he does not need an apology from trump, but other prisoners of war and families. >> in the case of veterans, donald trump said he prefers to be with people that are not captured. the great honour of my life was to serve in the company of heroes. i'm not a hero.

those are the people he owes an apology to. >> donald trump did not serve in vietnam, receiving medical defer. the demoyne journal called for donald trump to drop out of the race. >> a poll shows trump with a large lead over the rest of the republican field. >> a stretch of interstate near the arizona border will remain closed indefinitely after flash floods during storms washed outed a bridge on the east-west highway. drivers and truckers relying on the route between l.a. and phoenix are forced to take detours that can add hours to their trips. officials say the bridge passed a recent inspection. >> the search for life on other planets got a boost. the plan to search a milan star systems for -- million star systems for intelligence. a data hack that would have

cheaters feeling nervous tonight. ♪ ♪ ♪ get excited for the 1989 world tour with exclusive behind the scenes footage all of taylor swift's music videos interviews, and more. xfinity is the destination for all things taylor swift.

a british comedian showered outgoing f.i.f.a. president with fake money during a news conference in zurich swits, telling sepp blatter

sarcastically, this is for north korea 2026. sepp blatter is stepping down from the most powerful job in world soccer after a group of f.i.f.a. officials from indicted in the u.s. hackers claim they have stolen confidential information from ashleymadison.com. a dating website for married people looking to have an affair. the hackers are threatening to release the information. ashley maddison says it has 37 million customers, and said it had secured the site and told customers about a service to erase information one of the world's greatest mines is teaming up with one the world's richest men. they hope to find real extraterrestials. >> reporter: are we alone in the universe? something humans have wondered.

according to steven hawking, it's the ultimate unanswered question. >> it's time to commit to finding the answer to search for life beyond earth. we are life and we are intelligent. we must know. >> suppose on a planet there lives an intelligence species. >> it's away the award winning physicist is deeming up with a break through listen project. the tech entrepreneurs are issuing $100 million in a quest to see that alien life exists. >> the scope of the search will be unprecedented. 1 million nearby stars. the galactic center. the plan of the milky way, and hundreds nearby galaxies. >> using the world's largest and powerful radio telescopes 9 million volunteers scan 10 billion frequenceies from the million star systems closest

to earth and the 100 nearest galaxies. >> electronic will pick out any note with a frequency that is ringing true against the background noise of 10 billion notes out there. >> that one note, scientists say, could mean the existence of intelligence life in the cosmos. those sounds would have been create years ago. radio signals take up to four years to travel between earth and the nearest star outside our solar system. >> it's a huge gamble. they won't counselled on success, but the payoff is so colossal in recognising that there was life elsewhere, the investment was hugely worthwhile. >> to unlock the great mystery of life in the universe. we have only begun to open our eyes. come with us. >> the truth is out there. i'm antonio mora.

thank you for joining us. luis suarez is next with "inside story". have a good night. i'm antonio mora, goodnight. when crime was high, a generation with highest levels of incarcerations, now that state budgets are under pressure, and the crime is lower, is the country open to rethinking prison policies. incarceration nation - it's "inside story".