Town Hall’s hosting two can’t-miss events at the exact same time tonight. The reading with journalist Glenn Greenwald has unsurprisingly sold out, but the other reading, with Aneesh Chopra, is likely to be just as exciting and informative. Chopra, the United States’ very first chief technology officer, will be debuting his new book, Innovative State: How New Technologies Can Transform Government, a survey of all the ways government is lagging behind Silicon Valley and a challenge to catch up to a future in which every American voice is heard. Greenwald would surely agree that’s a noble cause. (Town Hall, 1119 Eighth Ave,, 7:30 pm, $5)