An F bomb Mistake Ruins the Album of one of My Favorite Bands (P.O.D)

Lately, I have been listening to the new P.O.D album  Murdered Love and I have say I am socked to hear P.O.D drop the f bomb on the song I Am. The song is from the point of view of someone searching for Christ but in the midst of the song they drop an F bomb. Here is my question, where is the line that needs to be drawn when it comes to spreading the message of Jesus Christ ? I know that P.O.D does not exactly claim to be an exclusively christian group but they are sold at christian bookstores like family christian. What dissappoints me is that the album is probably one of thier most appartly Christian orientated albums. The songs are great on the album until you get to I Am. Can we justify useing curse words inorder to identify with the lost and reach them for Christ? We do need to be honest but not at the expense of encourageing someones slavery to sin. Christ came to set us free from the slavery of sin he did not come to encourage us to remain a slave to sin. Paul says in First Corinthians 8:9  But you must be careful so that your freedom does not cause others with a weaker conscience to stumble. The members of P.O.D may be forgiven by grace but this does not give them a license to cause others to stumble.The F word on the album is kind of garbled and censored but you can still tell what the group is saying . I have been a big fan of P.O.D ever since there first album and it breaks my heart to see them go and make this mistake. If they would have left out that song from the album, the whole album would reached the world with a positive message.  For more about the album please read the following review.  http://www.jesusfreakhideout.com/cdreviews/MurderedLove.asp