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Sima Gilady's 20-year-old daughter, Leah, is studying abroad in Tel Aviv.

Sima's husband and 6-year-old son left Boulder last week to visit Leah. Over the last few days, militants have fired more than 100 rockets toward Israel. Some of them have been aimed at Tel Aviv. Warning sirens can be heard in the background of some video that Leah sent to her mother.

Leah told her mom that when those sirens go off they have about a minute to get find a shelter.