secretary clinton says the united states is not preparing for military action in iran, but she is asking the world community to come together and pressure iran through sanctions. ahead on train a head-on train collision in belgium killed at least 18 people this morning and injured 162 more according to a government spokeswoman. authorities do not believe there are other victims but they have not ruled out the possibility that bodies could be pinned underneath the cars. rescuers plan to lift the trains from the track tomorrow. it is not clear what caused the crash. a french judge issued an arrest warrant for u.s. cyclist floyd landis, the same cyclist stripped of his tour de france title for performance enhancing drugs. prurs want to talk to landis regarding a case of data hacking at the doping laboratory that tested his samples.