阅读下面一篇短文，按照要求回答短文后面的问题：

　　My husband is on the front lines in Iraq. Not as a soldier, but as a reporter. When I told my friend about his latest task, each had the same reaction, “Did you tell him no?”

　　They remind me, as if I'd somehow forgotten, that he has left behind our three young children for weeks, perhaps months. He will be risking his life, they say, only for some news.

　　Is it worth it?

　　I understand the pity they feel for me because of the burden suddenly heaped on my shoulders.

My 5－year－old daughter designed a schedule to determine which of the children would keep me company in my empty bed at night. Whether it was her turn or not, I can usually wake to find her huddled against me. My 7－year－old son has many questions about the war and weapons. Though I've never allowed my children to watch the evening news, National Public Radio has been my constant companion, and he was interested in any mention of the war, and he questions me about “when will dad go home”. Most troubling of all, my 9－year－old daughter has said nothing. She has asked no questions and she merely glances at the photo of her father displayed on the page next to his article each morning. And all three are probably the only kids at their school who can find Iraq on a map.

　　In the end, when friends ask, “Is it worth it?” I can answer yes. He, like other reporters from other countries, is presenting us with the truth.

　　So when my friends ask, I tell them it wasn't a matter of letting him go or making him stay. My husband just does what his career asks him to do.

1．Where is the author's husband?

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2．What do the author's friends think of her husband going to Iraq?

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3．Why does the author think her 9－year－old daughter is most troubling of all?

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4．What does the author think of her husband going to Iraq?

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