my children. >> we put ourselves on our knees and ask god that people's hearts will be touched and they will help us. >> hi. i'm cheryl ladd.

i'm cheryl ladd.

the queen's public art gallery. unfurling their banner, protesting fathers' rights to see their kids. they sit there for more than six hours. >> the authorities in london have to ask how on et this could happen when we're at theeight of security that we are. >> reporter: it's not the first time buckingham palace has a several unwanted guests over the years. in 2004, this father from the same prost group, fathers for