 Lots more people are taking off for the fourth holiday. CBS's Stacey Lynn. Nearly 30 million Americans are boarding planes this week. TSA spokesperson Lori Dankers is at Denver International. Regardless of what day they're traveling or when they're traveling within the day, it's going to be extremely busy. She says when it comes to security, travelers are their biggest partners. We ask them to come to the airport early. We ask them to come prepared. The Supreme Court has just agreed to consider whether a Texas law requiring travelers