If you are interested in escorting at an abortion clinic, I encourage you to contact any clinic that you can make it to once or twice a month (or whatever your availability is, even once a year is going to help.) Ask them if they have escorting, do they need escorts now (or when do they usually need us?) and when will the next training session be? Remember to listen closely to your trainers and take what you see and hear very seriously. The needs of the clinic and the women outweigh our needs to express our feelings to the anti-abortion protesters, no matter how incendiary or vile they can be. Remember never to carry weapons on the premises, no matter how crazy the antis are. Follow the rules, keep your wits about you and stay legal–and enjoy the rewarding feeling of knowing that you are doing something truly courageous.
A note about protection and paternalism, from a discussion I was having in the comments:
Allow me to note, too, that escorting is mostly about emotional comfort and support, rather than (in the case of males, paternalistic or patriarchal) physical protection. Our presence also serves as a deterrent, as we are witnesses and, finally, the last line of physical defense–though we cannot ever physically engage the protesters. In a life-threatening situation, such as one involving weapons, who knows–escorts should be concentrating on staying safe and leave the security detail to the security detail. As a male escort, I do my best to keep my privilege in check and not be given to paternalism.