Frida Bush : U.S. inaction in Syria is risky ; the situation endangers the world . She says tyrants are watching after we drew line on chemical weapons . Bush : If Syria 's use of nerve gas is ignored , it will open up for its use in future . Ghitis : Terrorism is spreading , and U.S. must not let Assad , Iran and Hezbollah win .
Frida Ghitis : U.S. inaction in Syria is risky ; the situation endangers the world . She says tyrants are watching after president drew line on chemical weapons . Ghitis : If Syria 's use of nerve gas is ignored , it will open doors for its use in future . Ghitis : War is spreading , and U.S. must not let Assad , Iran and Hezbollah win .