From the very first, the Vietnam Memorial, it was about being extremely site-specific and site-sensitive, creating something that merged with the land around it. But much more so in the last decade or two decades, my artwork has focused on making you aware of things in the natural world that we might not be aware of. What’s invisible we tend not to think about, so I’ve made sculptures that reveal the terrain below sea level. — style.time.com

Ms. Lin conceived "What Is Missing?" as the fifth, and last, of her memorial projects, which began with the Vietnam Veterans Memorial built on the National Mall in Washington, D.C., in 1982. — post-gazette.com

It is still far and away the greatest memorial of modern times—the most beautiful, the most heart-wrenching, the most subtle, and the most powerful. It’s also the most abstract, which makes it even more miraculous that it was built in a nation that generally prefers symbols more along the lines of the Lincoln Memorial. — Vanity Fair

the exhibition at the Carnegie is not about the Vietnam memorial or other moving memorials she has done since. Instead, this is a straightforward presentation that wants to lead us to meditate about rivers, seas, lakes, land forms and other elements in the natural environment. What we see here are her persistent efforts to find sculptural forms that will get us to care more about the world around us. All of her recent work, in fact, seems to be an outpouring of her concerns for the environment. — pittsburghlive.com