Layers of injustice, a filigree of language

Another beautifully written piece by Chimamanda Ngozi Adichie, this time an op-ed in the NYT, The Line of No Return. She describes the process of "Renewing my American student visa in Lagos, Nigeria, ... a trip through complex layers of injustice." I've praised her writing before: see Another great story from Chimamanda in my blog of 2003/10/09. I haven't yet read her novel, Purple Hibiscus, but plan to soon. Have you? What did you think?