Caitlyn Jenner, Spy Pigeon, Sheryl Sandberg and more Trends of the Week

Why did Sheryl Sandbergs Facebook post begin an online discussion about grief?\r
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How did Pakistanis react to India catching the spy pigeon?\r
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What happened when Caitlyn Jenner joined Twitter?\r
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The answers to all those questions, and more trends of the week.\r
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Blogs mentioned:\r
A Facebook executives candid post about grief: \r
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Celebrities face criticism for transgender opposition: \r
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Pakistanis respond after spy pigeon detained in India: