Preliminary events got underway in Sochi Thursday. Here, Poland's Kamil Stoch soars through the air during the men's ski jumping individual normal hill training event. But much attention is still focused on security.

Preliminary events got underway in Sochi Thursday. Here, Poland's Kamil Stoch soars through the air during the men's ski jumping individual normal hill training event. But much attention is still focused on security.

Credit:

REUTERS/Michael Dalder

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