Overseas have some people concerned. But president obama says there are no known Credible Threats against the u. S. Homeland. Nevertheless, he is asking everyone to remain vigilant. Pres. Obama i want the American People to know, entering the holidays, that the combined resources of military, intelligence and Homeland Security agencies are on the case. Elizabeth americans can expect to see a heightened security presence at places likes airports and train stations. Authorities are also monitoring for potential threats against socalled soft targets. Sec. Jeh johnson potential copycat acts, similar to things that occur overseas. Were focused on the lone actor as well. Elizabeth the tsa is recommending that air travelers arrive at least 2 hours before their flights to give themselves plenty of time to get through security. Kim lots of people are hitting the road early to beat the rain, ice and snow. Drivers are facing. Emmy roads are filling up hour after hour this thanksgiving eve with tr