Friend's E-mail:   (maximum of 3 addresses separated by commas) Your E-mail: A Brief Comment (150 char max / 25 word max) Article: Scientists say U.S. unprepared for asteroid strike John Johnson Los Angeles Times PASADENA — A group of scientists, joined by a member of Congress, used the 100th anniversary of the Tunguska asteroid event this week to draw attention to their belief that the United States is not doing enough to defend the planet against the dangers posed by near-Earth objects. Security image: (Case sensitive)     Note: the e-mail sent will contain information, such as your IP address (38.107.191.115), for purposes of tracking abuse. Use of this software to spam or harass individuals can and may result in penalties punishable by law.