NATION NOW
Martin Shkreli
Martin Shkreli is all smiles
Jessica Durando
USA TODAY
Drug entrepreneur Martin Shkreli was smirking and grinning instead of answering questions on Thursday at a Congressional committee during drug pricing hearing.
What's so funny? He wouldn't say. He pleaded the Fifth.
Until he took to Twitter.
Here are more photos of Shkreli beaming.
Photos: Shkreli refuses to testify
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