Lindsay Lohan's Sentence: What a "Locked" Facility Really Means

Is there any real difference between a locked rehab and regular rehab, besides, you know, lockdown? Are the facilities like the one Lindsay Lohan has been ordered to really locked for a star like...

Source: http://feeds.eonline.com/~r/eonline/answer/~3/4pLke8cS8aQ/lindsay-lohan-s-sentence-what-a-locked-facility-really-means

Maggie Gyllenhaal Majandra Delfino Malia Jones Malin Akerman Mandy Moore