Are parents to blame?

Recently in the news there have been two big stories about authorities breaking up a planned school attack.  In both cases there were multiple children involved and weapons seemed to have been easily accesible.  Are the parents really to blame as many other sites have been stating?  I am not going to sit here and say that parents don't have any part of this but I honestly believe that society has much of the blame in these situations.  I know that this will be a controversial topic and that there will be many of you who disagree but I will even admit that there are points I am not so sure of myself.  Anways, today's society is much more open to single parent homes and full-time working parents.  This then limits the amount of time of raising a child in proper manner and spending the quality time that children need with an authority figure.  Parents are required to work ful-time jobs in order to supply ample income in order to survive in the demands of today's society.  Schools are more worried about just getting a child through school with enough GPA to have a diploma and there is no attention given to the attitudes or treatment that the students give to each other.  Many of the school attacks that have occured are due to the fact that the students have no one to confide in except each other which can lead to the ideas and suggestions of revenge that occur.  Adults have ways of relieving their stress: drinking, playing sports or hanging out with friends.  Students need to be encouraged to join sports or school activities.  Most of it goes to the fact that an active student is less likely to commit a crime or injure someone.  Parents need to realize who their children are hanging out with and just spend time with them when they come home.  I know there are days when I don't feel like doing anything after work but even a ten minute conversation with my husband keeps us from jumping all over each other about what went wrong in the day or what is bugging us.  Weapons are another big deal in the whole aspect of this, whether from the parents or from connections, seem to be so easily received.  I have to agree that parents need to be involved in their childrens's lives and know what is going on but I believe that friends, family and even schools should be aware of changed behavior and treatment by other students.  Many times these incidents have occured from the effect of teasing from other children or by having cliques in schools.  I just ask that we as a society work with single and full-time working parents to provide a safe and open place for today's children to grow up in.