Dzhokhar Tsarnaev

♦ Lawrence Summers made dismissive remarks about the effectiveness of quantitative easing back in April, while a senate letter by a group of Democrats backing Janet Yellen for the next Fed chair is circulating. The Washington Post’s Wonk blog asks, who would make the better chair, Yellen or Summers?
♦Pope Francis is walking the walk in Latin America, inspiring the masses, and many should be feeling uncomfortable about this, argues John-Paul Rathbone.
♦ When Wen Jiabao defined Bo Xilai as a man who wanted to repudiate China’s effort to reform its economy, open to the world and allow its citizens to experience modernity, he was getting his revenge on a family that had opposed him and his mentor Hu Yaobang.
♦ Medieval Irish chronicles might be able to expand our understanding of climate change.
♦ Abbe Smith, a professor of law and the director of the Criminal Defense & Prisoner Advocacy Clinic at Georgetown University, examines why lawyers choose to defend someone like Dzhokhar Tsarnaev or George Zimmerman.

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James Blitz

Images of two suspects at an FBI press conference on April 18  (Darren McCollester/Getty)

Images of the two suspects at an FBI press conference on April 18 (Darren McCollester/Getty)

Two brothers, Dzhokhar and Tamerlan Tsarnaev, are suspected by US law enforcement officials of carrying out the bombing of the Boston marathon on Monday. The elder brother Tamerlan died in the course of an early morning car chase. The younger is now the subject of a manhunt. If we assume that these two men were indeed the perpetrators of the killings, establishing the motive for the attacks will soon become the biggest challenge for the US authorities.

Over the next few hours and days the US police and security services will be searching properties and buildings associated with the two men, analysing the content of computers and laptops, interviewing family and friends – all in order to build up a picture of why the two brothers acted as they did. Only then will the US government be able to work out the security and policy implications of the horrific events Boston has seen this week.

As of now, no form conclusion can be drawn. What can be said is that the two brothers will have had one of three possible motives. Read more