Obama: Terrorists 'will stop at nothing' to kill Americans

President Barack Obama on Monday hailed the arrest of a man in connection with the failed Times Square bombing, which he called "an attempted terrorist attack," and said terrorists will "stop at nothing" to kill Americans.

The president said federal officials are questioning Faisal Shahzad, who was arrested Monday night trying to board a flight to Dubai. Shahzad is to be formally charged Tuesday.

Obama reassured the public that Shahzad is being questioned by FBI and national security officials who "have all the tools and experience they need to learn everything we can, and that includes what if any connection this individual has to any terrorist groups."

"Justice will be done, and we will continue to do everything in our power to protect the American people," Obama said.

The president called the failed bombing attempt in New York City's Times Square "another sobering reminder of the times in which we live."

The president said there are terrorists who will "stop at nothing" to kill Americans, and he thanked the New York City citizens for their vigilance and officials for their work in investigating and arresting Shahzad.

Obama said he has personally thanked a number of those people, as he said "New Yorkers have reminded us once again how to live with our heads held high."

"As Americans, as a nation, we will not be terrorized," Obama said. "We will not cower in fear. We will not be intimidated." 

The Justice Department said Holder, Homeland Security Secretary Janet Napolitano and New York City and state officials will give an update on the investigation early Tuesday afternoon.

Obama yesterday telephoned Duane Jackson, a vendor who reported the suspicious vehicle. The White House said the president also phoned another vendor who reported the SUV, Lance Orton, this morning, along with responding police officers Wayne Rhatigan and Pam Duffy, "to thank them for their vigilance."