Article in English: . You can use the US Department of Justice National Sex Offender Database (located at http://www.nsopw.gov/en-US) to determine whether any registered sex offenders live in your area. All you have to do is enter your zip code and do a search, and you'll be able to see where child molesters might live.  You can also do a search for individual names to see if a specific person is a sex offender. It's good to be aware of potential predators, but realize that it is illegal to take any kind of action against registered sex offenders. Being as involved as possible in your child's life is the best way to guard against child molesters. They will look for a child who is vulnerable and who isn't getting a lot of attention from his or her parents or will convince parents they are of no danger to their child. Show up at games, practices and rehearsals, chaperone field trips and trips out, and spend time getting to know the adults in your child's life. Make it clear that you're an involved, present parent.  If you can't be there for a trip or outing, make sure at least two adults you know well will be chaperoning a trip. Don't leave your child alone with adults you don't know well. Even relatives can pose a threat. The key is to be as present as possible. There are times when you won't be able to be present, so use other tools to make sure your child is safe. Set up a hidden camera in your home so that inappropriate activity will be detected. No matter how well you think you know someone, you need to take precautions for your child's safety. Make sure your child knows that predators often pose as children or teenagers in order to lure children in online. Monitor your child's use of the internet, keeping rules in place to limit his or her "chat" time. Have regular discussions with your child about whom he or she is communicating with online.  Be sure your child knows never to send pictures to a person he or she met online, or meet someone he or she is communicating with online. Know that children are often secretive about...

Summary in Vietnamese:
Tìm hiểu xem liệu có tội phạm tình dục sống trong khu phố bạn ở không. Giám sát các hoạt động ngoại khóa của trẻ. Lắp camera theo dõi nếu bạn thuê người trông trẻ. Dạy con giữ an toàn trên mạng. Đảm bảo con của bạn phải cảm nhận được sự yêu thương và hỗ trợ. Dạy trẻ nhận biết những cử chỉ đụng chạm sai trái. Nhận biết khi có điều gì đó khác thường ở trẻ.