no motivation to turn off acar, correct, or disable it? >> of course it would. remember, acar is sending as many as 10,000 points a second. >> thanks so much for being here. appreciate your time. some families of those aboard flight 370 received a text telling them the plane was considered lost for good. a text. was it rude? maybe. i'm going to tell you what really wasn't all that uncommon about the texts. hey guys! sorry we're late. did you run into traffic? no, just had to stop by the house to grab a few things. you stopped by the house? uh-huh. yea. alright, whenever you get your stuff, run upstairs, get cleaned up for dinner. you leave the house in good shape? yea. yea, of course. ♪ [ sportscaster talking on tv ] last-second field go-- yea, sure ya did. [ male announcer ] introducing at&t digital life. personalized home security and automation. get professionally monitored security for just $29.99 a month. with limited availability in select markets. ♪