A maverick American general, a call to the Russian ambassador and allegations of spying on Donald Trump’s incoming administration. But what exactly is “Obamagate” and what impact might it have on this year’s US presidential election? With Tanya Beckett.

The massive explosion that tore through Beirut on August 4th left more than 200 people dead, 6,000 injured, and as many as 300,000 homeless. The explosion was caused by a fire that ignited 2,750 tons of ammonium nitrate stored at the port. When the blast hit, Lebanon was already in the middle of an unprecedented economic and political crisis that has triggered hyperinflation, poverty, and hunger. Many Lebanese feel that the blast was not the cause of catastrophe in Lebanon, but the result of it. Tanya Beckett asks, what’s gone wrong in Lebanon?

Producer: Viv Jones

(Lebanese protester waves a national flag amid clashes with security forces in Beirut, August 10 2020. Credit: Joseph Eid/Getty images)

Researchers around the world are racing to develop a vaccine against Covid-19, with more than 170 candidate vaccines now in development. Most vaccines take years of testing and additional time to produce at scale, but scientists are hoping to develop a coronavirus vaccine at record speed. Several potential vaccines are now in the final phase of testing but it could still be months before we discover if they are safe and can effectively prevent people from being infected.

If a vaccine can be found, there are concerns about how the world will manufacture enough. There may be challenges in storing it at the right temperature and transporting it safely around the world. Plus, rich countries might hoard supplies. Although hopes are high it is entirely possible that a safe and effective vaccine is a long way off, or never discovered. Experts warn that ‘waiting for a vaccine syndrome’ could be distracting us from finding other solutions for controlling the spread of Covid-19.

Presenter: Tanya Beckett

(A scientist works on an experimental coronavirus vaccine at a laboratory in Buenos Aires, Argentina. Credit: Juan Mabromata/Getty Images)

US lawmakers are deciding whether to act against the country’s powerful tech giants. Some believe the likes of Facebook, Amazon, Google and Apple are stifling competition. The companies have made huge profits during the Covid crisis and critics believe they will use this cash to buy competitors. With Charmaine Cozier.

Clockwise from top left: Facebook CEO Mark Zuckerberg, Google CEO Sundar Pichai, Amazon CEO Jeff Bezos, Apple CEO Tim Cook. Getty Images

Winter is coming in the northern hemisphere and traditionally it is time for colds and flu. This has raised fears that coronavirus will surge when the seasons change, possibly leading to a second wave of the disease that is even bigger than the first. However, predicting what a Covid winter will look like is complex and uncertainty reigns - there are reasons both to be worried and to be reassured.

Contributors: . Micaela Martinez, an Assistant Professor in the Department of Environmental Health Sciences at Columbia University . Katherine Wu, a health and science journalist with The New York Times . Judit Vall, a professor in health and labour economics at the University of Barcelona . Dominique Moisi, the author of The Geopolitics of Emotion.

(A man walks through a snowfall in Sarajevo, wearing a mask as protection against Covid-19. Credit Mustafa Ozturk / Getty Images)

With an estimated million Uighurs in detention camps, China has used a variety of means to successfully stifle world criticism. They include its economic muscle, political alliances with like-minded countries and sanitized tours of the facilities for opinion formers.

With Charmaine Cozier.

(Uighur prisoners shackled and blindfolded in Xinjiang, China. Still from anonymous drone footage.)

The presidential opposition candidate Joe Biden has barely emerged from his home since America’s lockdown at the end of March. But polls suggest that the low-key strategy is working in his favour – as his rival President Donald Trump comes under increasing pressure over his handling of the coronavirus and a resurgence of racial tension.

With four months to go until the election, is staying in the basement Joe Biden’s best option? What are the risks if he does? And how could Donald Trump turn things around?

Contributors: . Jason Zengerle, writer at large for the New York Times Magazine . Rachel Bitecofer, Senior Fellow at the Niskanen Center and host of the Election Whisperer. . Niambi Carter, Associate Professor of Political Science at Howard University and author of “American While Black”. . Whit Ayres, Republican pollster at North Star Opinion Research.

Presenter: Tanya Beckett Producers: Estelle Doyle and Victoria McCraven Editor: Richard Vadon

(Image: Joe Biden at campaign event, Credit: Leah Mills/Reuters)

The recent border clash between China and India is seen as a watershed moment in the two nuclear nations’ relationship. How will its repercussions affect Asia, and the rest of the world?

Contributors: . Chris Dougherty - a senior fellow with the Defence Programme at the Centre for New American Securities. . Ananth Krishnan – a correspondent for the Hindu newspaper. And the author of “India’s China Challenge” . Tanvi Madan – a senior fellow in the Foreign Policy programme at the Brookings Institution. . Yu Jie - a Senior Research Fellow on China at Chatham House.

Presenter: Tanya Beckett Series Producer: Estelle Doyle

(Chinese President Leader Xi Jinping with Indian Prime Minister Narendra Modi at the 2017 BRICS Summit. Photo: Kenzaburo Fukuhara/Getty images)

Why are Covid cases dramatically increasing in some U.S. states, where rates had been low? The number of new coronavirus infections in a single day has passed fifty five thousand. Is it because of more testing, or is something else going on?

(Demonstrators outside the State Capitol in Auston.Texas protesting against Coronavirus restrictions. Credit: Gary Miller/Getty Images)

President Vladimir Putin has been in power for 20 years. The Russian people have been voting on a change to the constitution that could keep him in the Kremlin until 2036. While world leaders and opponents struggle to second guess him, some objectives appear to be clear: stability at home, respect abroad and power maintained for his inner circle.

Presented by Charmaine Cozier

(President Vladimir Putin at the Kremlin in Moscow, Russia, February 2020. Credit: Mikhail Svetlov/Getty Images)

The killing of African American George Floyd ignited anti-racist protests around the world - many centred on statues associated with colonialism and slavery. Why do these figures of bronze and stone generate such strong feelings? And what do they tell us about how countries deal with their past?

Contributors: Sarah Beetham Chair of Liberal Arts at the Pennsylvania Academy in the Fine Arts. Ghaith Abdul-Ahad journalist for The Guardian newspaper. AGK Menon, architect, urban planner and founder of the Indian National Trust for Art and Cultural Heritage. Daniel Libeskind, architect.

Presenter: Kavita Puri

(Protesters attempt to pull down the statue of Andrew Jackson near the White House June 22, 2020 in Washington, DC. Credit: Drew Angerer/Getty Images)

Why is the movie business having trouble representing the world’s population on and behind the big screen? A rising share of the U.S. population are black, more than half of the demographic are female – so why is it so difficult to translate this into cinema?

Hollywood has found itself red-faced in an era of Black Lives Matter and MeToo movements. From #OscarsSoWhite to criticism of who’s behind the films we see, the pressure to change is stacking up.

Charmaine Cozier discovers the issues within the industry and what movie bosses prioritise over diversity. But will activists, actors and data be enough to convince big studios that the revolution is here – or will it just be business as usual?

Guests: April Reign, Diversity and Inclusion Advocate and creator of the #OscarsSoWhite movement Naomi McDougall-Jones, a film producer, writer and women in film activist Darnell Hunt, Dean of Social Sciences at UCLA and Professor of Sociology in African American Studies. He is co-author of the UCLA Hollywood Diversity report Bonnie Greer, a writer and critic

Presenter: Charmaine Cozier/ Producer: Bethan Head

(Actor John Boyega raises his fist in protest at a Black Lives Matter march in London, UK (Credit: Daniel Leal-Olivas /Getty Images)