The 1980s were a seesaw of change in regard to the man known as
Magneto, the mutant master of magnetism, whose cruel and brutal brand of villainy reaches back almost sixty years. Beginning in 1981,
Uncanny X-Men writer Chris Claremont set Magneto on a course for redemption following
a fierce battle with his longtime foes after yet another attempt on his part to claim world dominance. In 1983, he made overtures toward peace with Quicksilver and the Scarlet Witch, who were celebrating the birth of Pietro's daughter, Luna, and learned to their shock that
Magneto is their father. Nearly a year later, he and Charles Xavier agreed to an uneasy alliance when they and the X-Men were
transported by the Beyonder to another world (along with other super-beings), a truce that continued three months later when Magneto answered a call from a critically injured Xavier to lead the X-Men to investigate
the Beyonder's appearance on Earth. Later that year, after a foiled attempt by Freedom Force to capture him, Magneto agreed to be placed under arrest and subsequently
appeared before an international tribunal convened to hold him accountable for past crimes, a judgment he avoided when terrorists led by Fenris assailed him. Three months later in 1986, he again reached out to his children when Wanda gave birth to
his two new grandchildren.
Just over a year later, the X-Men, who had acclimated to Magneto's presence among them, clashed with the Avengers as well as the Soviet Super-Soldiers when Magneto investigated the fall to Earth of his former asteroid base--culminating in his reappearance before the world court where judgment was finally rendered in his delayed trial. Yet in mid-1989, we began to see signs of the man he was, when he seized control of the Hellfire Club and chose a new, less passive course in preparing for a mutant/human war he saw as inevitable.
Stepping back three years prior, however, we find him still very much Magneto the reformed, as he attempts to ascertain the status of Xavier's--that is, his--students, the New Mutants, currently boarding at the Massachusetts Academy prep school run by Emma Frost of the Hellfire Club. Yet unknown to him, plans have been put in motion to avert his possible interference--and as a result, local law enforcement, while lacking concrete details*, feels it prudent to reach out to the Avengers for assistance in dealing with the threat potential associated with Magneto.
*The details being sparse, to say the least--in particular, the Snow Valley Sheriff makes no inquiry whatsoever as to the identity of Frost's informant. Was it someone known to her whom the Sheriff could follow up with? Or was the caller anonymous? Regardless, the Avengers scramble as if they've been supplied with all the information they need to bring Magneto back in chains.
There's no end to the Avengers' speculation on the matter of Magneto's motivation--though given their experience with Magneto, it's little wonder that they're ready to assume the worst, his voluntary appearance at the world court notwithstanding.
(Having also been deceived and used by Dr. Doom, and more than once, Namor elevating Magneto to such a classification rather than simply emphasizing him as being of the same calibre as Doom is curious, though just an observation on my part.)
And so, in accordance with longstanding Marvel tradition, battle lines are being drawn which play into the hands of whoever has instigated this plot (assuming that's the case--even we don't know their identity, at this point)--and from the looks of things, Cap is on board with his team in acting first and asking questions later. Yet the question to ask now is: Are the Avengers prepared to believe anything but the worst of Magneto?