The Note's Must-Reads are a round-up of today's political headlines and stories from ABC News and the top U.S. newspapers. Posted Monday through Friday right here at www.abcnews.com

Compiled by ABC News' Jayce Henderson and Amanda VanAllen

NORTH KOREA: USA Today: " Obama calls North Korea nuclear test a threat to U.S." President Obama on Tuesday called North Korea's third successful nuclear test a "highly provocative act" that "undermines regional stability" and threatens action by the international community. He said North Korea's nuclear program constitutes "a threat to U.S. national security." The White House released the statement early Tuesday after North Korea detonated a miniaturized nuclear device at a northeastern test site, state media said, defying U.N. Security Council orders to shut down atomic activity or face more sanctions and international isolation. LINK

STATE OF THE UNION: The Wall Street Journal's Gerarld Seib: " Economic Anxiety Shadows State of the Union" Four times, President Barack Obama has stood in the well of the House of Representatives and delivered a State of the Union address-and four times, economic anxieties have largely overshadowed his efforts to push a broad agenda. Tuesday night he makes his fifth such address-the State of the Union that will help define his second term. While the economy is improving and the mood in Washington is changing in significant ways, the story line isn't all that different: A broader Obama agenda is fighting to break out, but the economy still hangs over all else. LINK

The Los Angeles Times' Paul West: " State of the Union reply is chance for Rubio to shine" When Marco Rubio gives the official Republican response to the State of the Union speech, it will be a chance for the party's fastest-rising star in years to impress millions of voters who have yet to form an opinion of him. But along with the high-profile honor Tuesday night comes intense pressure. It could be particularly acute for Rubio, the first-term senator from Florida. Not only must he meet high expectations, but his speech must find a way to bridge serious splits within his party and, simultaneously, attract voters who have turned away from Republicans in recent elections. LINK

New York Daily News' Dan Friedman: " AISLE HOG: Bronx Rep. Eliot Engel will once again be in the audience at State of the Union address" In Congress, there is a Tea Party Caucus of conservative members and Black Caucus of African-American lawmakers. There is a Hispanic Conference, and even a Bike Caucus. On Tuesday night, when President Obama delivers his State of the Union address, Bronx Rep. Eliot Engel will highlight his role in an altogether different group of lawmakers. They've been called the Aisle Hogs. LINK

The Washington Times' Dave Boyer: " Obama's State of the Union a wish list for liberals" The first State of the Union address of President Obama's second term is shaping up as a conservative's nightmare come true. In his speech to Congress on Tuesday night, Mr. Obama is certain to demand more tax revenue, part of his "balanced" approach to deficit reduction, even though he won a battle with Congress last month for a tax increase on wealthier households. He also will push for more spending to fund his job-creation proposals and education plans. LINK

The New York Times' Jackie Calmes: " Watching Obama for Signs of Change" On Tuesday night, the president will address the nation and Congress on the state of the union. But many will watch as well for signs of the state of Barack Obama. Inside the White House and out, advisers and associates have noted subtle but palpable changes in Mr. Obama since his re-election. LINK

The Washington Post's David A. Fahrenthold: " State of the Union squatters: Lawmakers wait hours on aisle for seconds with president" For the State of the Union squatters, the wait can be seven hours or more. You read the newspaper. You sign letters to constituents. LINK

CYBER SECURITY: The Hill's Jennifer Martinez: " Sources: White House to issue cybersecurity order Wednesday" The White House is poised to release an executive order aimed at thwarting cyberattacks against critical infrastructure on Wednesday, two people familiar with the matter told The Hill. The highly anticipated directive from President Obama is expected to be released at a briefing Wednesday morning at the U.S. Department of Commerce, where senior administration officials will provide an update about cybersecurity policy. LINK

GOP: Politico's Ginger Gibson: " Stockman full-speed ahead as Obama's top foil" It didn't take long for Steve Stockman to light another fire in Washington. After 16 years away from the nation's capital, the Texas Republican lawmaker was back in the House for roughly two weeks before warning that he was willing to file articles of impeachment against President Barack Obama after he announced he would sign executive actions on guns. LINK

The Boston Globe's Michael Levenson and Noah Bierman:" Republican Gomez to campaign for US Senate" Gabriel E. Gomez, a former US Navy SEAL and private equity ­investor, is set to kick off his campaign for the Republican nomination for US Senate Tuesday,with a press release and Web video, said a senior adviser. Gomez, who took out nomination papers Monday to run in the special election to replace Senator John F. Kerry, will not speak publicly until later. LINK

RICK PERRY: ABC News' Arlette Saenz: " Rick Perry in California to Lure Businesses to Texas" Texas Gov. Rick Perry is on a four-day recruitment trip to California this week, trying to lure Golden State businesses to set up shop in the Lone Star state. The trip, which began Sunday, will take Perry to San Francisco, Silicon Valley, Los Angeles and Orange County, but the recruitment started last Monday when Perry made an ad buy in California inviting Golden State businesses to enjoy the tax and regulatory benefits available to them in Texas. LINK CHUCK HAGEL: Bloomberg's Laura Litvan: " Hagel Confirmation Vote to Be Held Tomorrow in Committee" Senate Armed Services Committee Chairman Carl Levin said he will hold a vote in the panel tomorrow on Chuck Hagel's nomination for defense secretary, as Democrats seek to overcome Republican opposition and complete action on the confirmation as soon as this week. "It is the chairman's intention to vote on the nomination after the members have an opportunity for discussion," Levin, a Michigan Democrat, said today in a statement. LINK

ABC NEWS VIDEOS: " Nicole Wallace: The State of the Union is…" LINK " Rep. Tom Cole: The State of the Union is…" LINK

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