Charlie Hebdo Massacre Sparks Worries of Copycat Attack Inside US

Police in several U.S. cities are stepping up security at French installations.

— -- The deadly terror strike in Paris has awakened worries that such a brazen event could be repeated in the United States.

Although there are no credible threats inside the country in the aftermath of Wednesday’s attack on the office of the satirical newspaper Charlie Hebdo, killing 12, police in several major U.S. cities are stepping up security at French installations.

The warnings come as Congress will begin debating the Homeland Security budget and the funding of immigration programs.