Currently this isn’t a story that requires any commentery. Instead let me point you to those who are reporting on the attacks which occured in London:

Michelle Malkin – Here (who’s responsible), Here (photos), Here (Blair and Bush statements), and Here (when the story broke).

The Jawa Report – Here and Here.

Captain’s Quarters – Reporting on the attacks and suggesting a very good idea – We are all Britons Today (with credit for the idea given to Shape of Days).

OTB, Lorie Byrd, Glenn Reynolds (with many links), In The Bullpen and many others are reporting as well.

One thing that Mac Powell (In The Bullpen) mentions in the story linked above is this very appropriate reminder from President Bush: “This morning I’ve been in contact with our homeland security folks and I instructed them to be in touch with local and state officials about the facts of what took place here and in London and to be extra vigilant as our folks start heading to work.”

Point taken Mr. President.

Here in the US – (Newsmax)

In New York, Washington and several other major cities, local authorities heightened security in transit systems.

But Homeland Security Department spokesman Brian Roehrkasse said there were no immediate plans to raise the nation’s threat level.

“We do not have any intelligence indicating this type of attack is planned in the United States,” Roehrkasse said.

The department asked authorities in major cities for “continued vigilance” of their transportation systems, Roehrkasse said.

[...]

Security was stepped up in the nation’s capital, with bomb-sniffing dogs and armed police officers patrolling subways and buses – ridden by about 1.2 million people a day – and looking for anything suspicious. Passengers were being urged to report any suspicious activity.

A police helicopter repeatedly circled the Robert F. Kennedy stadium area, a major transportation hub with several bus stops and large commuter parking lots.

[...]

In Boston, Massachusetts Gov. Mitt Romney raised the security level on the city’s transit system. Romney spokesman Eric Fehrnstrom said the heightened security level is similar to the “Code Orange” used by federal authorities.

Increased police coverage of subways, buses and transit stations was also ordered throughout New York City.

In Los Angeles, a police official said police had activated a special command center and officials were meeting to decide whether to upgrade security levels around the city.

A spokeswoman for the Chicago Transit Authority said transit officials were working with Chicago Police on additional security measures. CTA spokeswoman Kimberly Myles said announcements were being made to riders to be aware of their surroundings and to alert transit workers about suspicious packages.

Similar announcements were made in Cleveland and several other cities.