Dust behind screen?

It looks like dust (white specs) has somehow gotten behind the screen on my Sansa Clip. Any ideas on how to remove them?

Typically, by using canned air and blowing it through an opening such as the USB or headphone connection.  My only concern would be, you don’t know if you could cause more specs or make those already there seem worse.  But if it bothers you, it might make sense to give it a go.