I found my Gr. Gr. Grandparents on a ship from Poland to New York, 1922. They were detained for questioning. Next to their names is typed "LPC" (likely to become public charge). I know one or both of them was in the hospital but I can't quite figure out what that has to do with "LPC"

Here is a photo of some notes on the "further questioning" - I can't quite make out the hand writing: http://oi50.tinypic.com/autr0k.jpg

My ancestors are lines #2 and #3.

Any help would be great.