Good Questions: What Are These Bugs?

New York

7-28-bug-question.jpgRose sent us an email: "I just moved to my new apartment, and am finding these little bugs crawling around. They don't fly, they just kind of appear from nowhere on my white walls. I'm not sure what they are and where they're from, and I see them every couple days. My windows are closed all the way, and I have no pets. Attached is a picture of the bug. It's about 1-2mm...

Do you have any idea what it is or if it's something that I should be worried about?

Thanks,
Rose

Yikes! Should Rose be concerned?