Latest Nation headlines

Uncle Sam wants you — Or at least your genetic and lifestyle information

WASHINGTON — Government scientists are seeking 1 million volunteers willing to share the innermost secrets of their genes and daily lives as part of an ambitious 10-year research project to understand the causes and cures of disease.

Across the US, extreme, dangerous heat

Extreme dangerous heat will continue across the eastern two-thirds of the nation Sunday.

E-mails suggest DNC derided the Sanders campaign

Top officials at the Democratic National Committee criticized and mocked Bernie Sanders during the primary campaign.

Tim Kaine: A liberal who rose in a conservative state

Kaine has deftly managed his own rise as a progressive in a bastion of Southern conservatism.

Kaine’s VP pick greeted by blowback from progressive groups

Several organizations sharply questioned Tim Kaine’s liberal bona fides.

For Clinton, Kaine was safe, centrist choice

Hillary Clinton picked Senator Tim Kaine of Virginia to be her running mate.

JFK: 50 Years Later

Special section

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A five-part series examining the profound impact of former President John F. Kennedy’s assassination.

Globe Investigations

Special section

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2013/10/01/BostonGlobe.com/Special/Images/magnifying_glass1500618-081--90x90.jpg Recent investigative reports

Read recent stories and ongoing investigations from the Globe’s journalists.

Gay marriage in the US

Interactive Graphic

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2013/08/01/BostonGlobe.com/National/Images/Untitled-12.jpg Timeline of gay marriage in US

In the early 1970s, there were zero states banning or allowing same-sex marriage. Now it’s legal nationwide, and all bans have been overturned.

Instagram

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2013/12/17/BostonGlobe.com/Metro/Images/a4a68392593311e3a80a0a154a02c3a8_7-7210--90x90.jpg Boston Globe Instagram photos

A live stream of Instagram posts from The Boston Globe photo department.