Single adult traveling with children under 18

[Floridacargocat]

Found this information on the cbp.gov website
http://help.customs.gov/cgi-bin/customs.cfg/php/enduser/std_adp.php?p_faqid=268&p_created=1043364937&p_sid=OHrxiemi&p_accessibility=0&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX 3Jvd19jbnQ9OSZwX3Byb2RzPTAmcF9jYXRzPTAmcF9wdj0mcF9 jdj0mcF9zZWFyY2hfdHlwZT1hbnN3ZXJzLnNlYXJjaF9ubCZwX 3BhZ2U9MSZwX3NlYXJjaF90ZXh0PWNoaWxk&p_li=&p_topview=1
Please read this for your information, as it might help avoiding some delays upon re-entering the USA from aborad (including The Bahamas).

[Tequila Gecko]

I have traveled with my daugher to Mexico, Grand Caymen, Bahamas, and I have always taken a letter from her mom. Notorized and all with even a copy of our custody papers. I have entered through Miami, FLL, IAH, and never ever been asked. However I do think it is better to be prepared than not. She also has always had a passport and always get hers stamped even if they fail to even try. She like getting them.