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Lena Groeger

News Applications Developer

Photo of Lena Groeger

Lena Groeger is an investigative journalist and developer at ProPublica, where she makes interactive graphics and writes about design’s real-world consequences. She is on the board of the Society for News Design and has taught classes on design and data visualization at NYU, The New School and CUNY. Before joining ProPublica in 2011, Groeger covered health and science at Scientific American and Wired magazine. She is particularly excited about the intersection of cognitive science and design, as well as telling stories with real-world impact.

Too Human (Not) to Fail

How design keeps you from screwing up and prevents disaster when you do.

Announcing our Five NAHJ/NABJ Scholarship Recipients!

ProPublica will award scholarships to five journalism students to attend the NAHJ/NABJ Annual Convention this summer.

Unsafe at Many Speeds

Your risk of getting killed by a car goes up with every mile per hour.

How Typography Can Save Your Life

What words look like matters — in some cases, a whole lot.

Tax Avoidance Has a Heartbeat

Every year at dividend time, demand to borrow German stocks spikes.

Renter Beware: Ten Ways Unscrupulous Landlords Cheat NYC Tenants

Here are the top 10 ways unscrupulous landlords take advantage of tenants, and what you can do about it.

We Blew $17 Billion in Afghanistan. How Would You Have Spent It?

The U.S. government has wasted billions of dollars in Afghanistan, and until now, no one has added it all up. Project after project blundered ahead ignoring history, culture and warnings of failure. And Congress has barely blinked as the financial toll has mounted. Here’s just what the Special Inspector General for Afghanistan Reconstruction found. See for yourself how that money could have been used at home.

The Making of a Narco-terrorist

Five criminals in far-flung parts of the world, five D.E.A. sting operations, five dubious links between drugs and terror. The characters are different but the story remains the same. Authorities said each case demonstrated alliances between terrorists and drug traffickers, but most of the alleged links fell apart in court. Here’s how narco-terrorism cases are made.

Price Check: How Companies Value Body Parts

Benefits for the same body part can differ dramatically depending on which company you work for.

Homeschooling Regulations by State

Homeschooling has been legal throughout the United States for about 25 years, but regulations vary dramatically across the country. Use our map to compare how laws vary by state.

Treatment Tracker

We've updated our database of Medicare’s payments to individual doctors and other health professionals serving the 49 million seniors and disabled in its Part B program.

Treatment Tracker Methodology

How we made a news app to compare doctors Medicare billing patterns.

What ProPublica is Doing About Diversity

ProPublica is working hard to increase the diversity of our workplace. Here’s what we’re up to:

New Dollars for Docs

Pharmaceutical and medical device companies paid billions to doctors from late 2013 through 2014, new data shows. Search for your doctor in our interactive database.

On Repeat: How to Use Loops to Explain Anything

From animated gifs to looping interactives, we're seeing more and more ways of presenting ideas, explaining processes, and just capturing small moments in endless, repeating sequences. Here's how loops work and how you can use them.

Cruise Control

Your one-stop shop for health and safety data on cruise ships

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