Writer: Beth Sizeland

Insights

13 Aug, 2026

Frontiers of Trade: Biology, national security and the border 

This is the fourth instalment of our  Frontiers of Trade  Policy series, which examines the places where international commerce is running ahead of the law meant to govern it. The first instalment asked which country owns a resource mined in space, the second asked who is liable when an autonomous AI agent, rather than a […]
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27 Jul, 2026

What will Jonathan Reynolds’ leadership mean for national security investment screening?

Under Burnham, the boundaries between foreign investment, UK strategic capability and national security are becoming increasingly blurred and the ISU's casework is likely to reflect that in its new home. The UK’s National Security and Investment Act (NSIA) regime has always sat at the intersection of prosperity and security policy. Andy Burnham’s decision to move […]
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15 Jul, 2026

NSIA Annual Report – a more confident regime and a less predictable risk

Latest data points to broader national security judgments and greater willingness to test the regime's boundaries, just as a new Prime Minister is about to take office. A maturing regime entering a new phase The Cabinet Office’s Investment Security Unit (ISU) published its Annual Report covering National Security and Investment Act (NSIA) operation from 1 […]
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08 Jan, 2026

What the US intervention in Venezuela reveals about Trump’s foreign policy 

On 3 January, US forces carried out airstrikes and a military operation in Venezuela’s capital, Caracas, capturing President Nicolás Maduro who has been in power since 2013. Venezuela’s Vice President Delcy Rodríguez has assumed presidential powers as interim President.   This US action in Venezuela illustrates Trump’s increased focus on the US sphere of influence in the Western […]
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News and media

20 Jul, 2026

Partner Beth Sizeland for BBC

Flint Partner Beth Sizeland shares her thoughts on the national security issues facing Andy Burnham as the new PM.
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05 May, 2026

Flint Partner Beth Sizeland on BBC The World This Weekend

Listen to Flint Partner Beth Sizeland on BBC 'The World This Weekend', discussing disruption in the UK as a result of the closure of the Strait of Hormuz.
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Podcast