if you read http://www.uscis.gov...ources/daca.pdf , it states that "a brief, casual, and innocent absence from the United States will not interrupt your continuous residence. If you were absent form the United States for any period of time, your absence will be considered brief, casual, and innocent, if it was before August 15, 2012. I was away for about 3 weeks and returned july 4th.
My concern is that currently, I'm technically not "illegal" since im here on a VWP. but then im wondering, how would anyone leave the US for a brief casual innocent absence?