Dailies | Boston Bombings: George Bush Tells Diane Sawyer That Attack ‘Harkened Back’ to His Days in Office (Video)

"It's really hard to protect the homeland," former president Bush admits to Diane Sawyer

Former president George W. Bush sat down with anchor Diane Sawyer for an interview airing Wednesday night on "World News With Diane Sawyer," admitting that last week's bombings at the Boston marathon "harkened back" to his time in office.

"[I]t harkened back to the days where you become the comforter-in-chief … try to help heal souls that are hurting," Bush, whose presidency was marked by the terrorist attacks of Sept. 11, 2001, told Sawyer.

Bush, who said that he was "extraordinarily pleased" with the authorities' response to the bombings, ceded that it's "really hard" to protect the nation from threats such as the bombings.

"I don't know the facts [about the bombings], but I do know that it's really hard to protect the homeland. Those who want to do harm only have to be right one time, and we have to be right 100 percent of the time."

Bush, who was accompanied by former first lady Laura Bush, also expressed encouragement for a possible presidential run by his brother, former Florida governor Jeb Bush, calling him a "marvelous candidate."

“He'd be a marvelous candidate if he chooses to do so. He doesn't need my counsel 'cause he knows what it is, which is ‘run,’ ” Bush said. “But whether he does or not, it's a very personal decision.”

Watch Sawyer's interview with Bush below.