Kara's next stop before going home was Metropolis, which she'd told her board was her checking in on her new medical research division in Metropolis, which was true, since after what Nate had told her, she wanted to discuss reviving that treatment that had given him his powers, though with alterations to make sure that it didn't turn more people into super soldiers, since not only did she fear what would if the U.S. government could suddenly make soldiers no other army could beat, but also did not want her company affiliated with that, especially since she did not want the patriot act to allow the government to steal it from her.
Besides, while Nate had grown up wanting powers, wanting to be a hero like his grandfather, Kara knew that most people just wanted to live normal lives, lives that would be uprooted if they suddenly got powers. But that meant that she'd likely be personally looking into it, along with other biochemists, namely Caitlin Snow and possibly Jefferson's ex-wife Lynn Stewart, since they were both experts in biochemistry and they could help her make the cure work the way it was supposed to without giving people powers.
But the real reason she was in Metropolis was not really that or even visiting her cousin and his family, though she would be stopping by to see the kids before leaving. Her real objective was investigating what Clark had told her at Diana's wedding about his new partner in crime fighting. The robot man the public was calling Steel. Or as he was also known by John Henry Irons. And who Kara now knew was also Clark's former brother-in-law, since it turns out that John had been married to Lois's sister Lucy for a few years and they'd even had a daughter together, Natalie, named after Lois and Lucy's grandmother, though they'd gotten divorced a few years ago, simply due to the fact that they'd realized that while they loved each other, they didn't work well as a married couple and their relationship was better for it, since it was an amicable split, with Lucy getting custody of Natalie with John getting her on weekends and other visitation rights.
But anyways, the reason Kara was visiting Dr. Irons was because she wanted to confront him about technically stealing her technology to create his warsuit, since he may work for her company, that power suit was not something they were working on and it was clear that he'd gotten the technology to build his suit from her.
Which meant she needed an explanation from him and she also wanted to freak him out a bit, since it was the least he could do for stealing from her.
"Note to self, thank Clark for giving me the location of John's Steel cave." Kara said as she walked into his base and found John looking at monitors as she coughed to get his attention.
"Ahem." She said with a smirk as John Henry jumped in shock.
"Dr. Danvers, what are you doing here?" John asked, wondering how his boss found him and how she'd discovered what he was doing.
"Superman sold you out. You're lucky I haven't contacted the police or the FBI or the CIA for stealing my technology." Kara said, acting like she was angry, when in reality, she was fighting the urge to burst out laughing at the look of fear on John's face.
"I swear, I can explain." John said.
"Explain what, how you used patented Argo Enterprises robotics technology to create a superpowered warsuit to fly around Metropolis and how you've likely been stealing more of it to maintain it." Kara asked.
"Well it sounds bad when you put it that way." John admitted and Kara couldn't help it anymore as she burst out laughing.
"I'm sorry, but your reaction is too priceless." Kara said with a grin.
"Wait, you're not mad?" John asked.
"Why would I be mad at you for doing something that I do myself." Kara said.
"I'm sorry what?" John asked as Kara took a risk by summoning her Supergirl outfit.
"You're Supergirl." John said and my cousin is Clark Kent, aka, Superman, who I know you've been working with. But Dr. Irons, I have to ask, why are you doing this?" Kara asked.
"Before I was a scientist, I was a soldier. That's how I met my ex-wife Lucy. And then when I came home, I thought I was leaving war only to come home to another one. The fights that Superman, who I've always admired, couldn't do because he was too busy trying to save the world alone." John said.
"And that's admirable. You soldier's combat training and an engineer's mind led to the development of this warsuit. I thought it best to keep it secret not only to protect myself and my family, but also to keep groups like Intergang from realizing what they can make by stealing your tech. And I am sorry I had to do that." John said.
"Accepted and now you'll have full access to my resources to maintain and upgrade your suit. Along with building you and Superman a proper Metropolis hideout, since while his Fortress is great for him, it's not exactly built to serve as a team base of operations." Kara said.
"I can't wait to see that." John said.
"Great, but are you sure you've completely thought this through? Thought about the dangers this choice has not just for you, but for your daughter Natalie. We both know Lucy would never forgive you if anything happened to your daughter because of your choices." Kara said.
"I know, which is why I took serious precautions to keep my identity secure. I know the risks and I've done everything I can to keep my family safe. Including telling your cousin my real name to guarantee Superman's protection." John said.
"And now the protection of the rest of the Justice League. You may not be a member yet, but the fact that Superman vouches is a start. Not to mention all your work since you became active. Keep it up and might find yourself up for a vote when the time comes. Now I have one more stop to make before I return to National City. It was good to see you again Dr. Irons. With all cards on the table now." Kara said as she took her leave.