Normal service was resumed in Practice Two in Texas as Sebastian Vettel headed a Red Bull one-two from the Mercedes duo.
Mark Webber believes the current financial state of Formula One needs to be addressed quickly for the sake of the sport's future.
Fernando Alonso was fastest in opening practice for the U.S. GP in a truncated session at the Circuit of The Americas.
Kimi Raikkonen has undergone a successful operation on his back.
Max Chilton has urged Marussia bosses to give him a pen to sign a new deal.
Felipe Massa is convinced Williams are putting the pieces in place to ensure they again become a front-running team.
Paul Di Resta has no doubts cousin Dario Franchitti will continue in motor sport despite being forced to call time on his on-track career.
Jenson Button has conceded to surprise at McLaren's decision to axe current team-mate Sergio Perez and promote rookie Kevin Magnussen.
David Ward has pulled out of the FIA presidential election race, effectively clearing the way for Jean Todt to be re-elected for a second term unopposed.
Heikki Kovalainen will stand in for Kimi Raikkonen at Lotus at the final two grands prix of the season after Caterham released the Finn from his duties with the team.
Sergio Perez has revealed he would consider racing outside of F1 for 2014 after admitting that the timing of McLaren's decision to drop him has left him in a "difficult" position.
McLaren have confirmed that Kevin Magnussen will partner Jenson Button in 2014.